Rapid and quantitative detection of SARS-CoV-2 IgG antibody in serum using optofluidic point-of-care testing fluorescence biosensor

The extreme acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein is the principle goal for neutralizing antibodies. These antibodies might be elicited by immunization or passively transferred as therapeutics within the type of convalescent-phase sera or monoclonal antibodies (MAbs). Potently neutralizing antibodies are anticipated to confer safety; nonetheless, it’s unclear whether or not weakly neutralizing antibodies contribute to safety.

Additionally, their mechanism of motion in vivo is incompletely understood. Right here, we exhibit that 2B04, an antibody with an ultrapotent neutralizing exercise (50% inhibitory focus [IC₅₀] of 0.04 μg/ml), protects hamsters towards SARS-CoV-2 in a prophylactic and therapeutic an infection mannequin.

Safety is related to diminished weight reduction and viral hundreds in nasal turbinates and lungs after problem. MAb 2B04 additionally blocked aerosol transmission of the virus to naive contacts. We subsequent examined three further MAbs (2C02, 2C03, and 2E06), recognizing distinct epitopes inside the receptor binding area of spike protein that possess both minimal (2C02 and 2E06, IC₅₀ > 20 μg/ml) or weak (2C03, IC₅₀ of 5 μg/ml) virus neutralization capability in vitro. Solely 2C03 protected Syrian hamsters from weight reduction and diminished lung viral load after SARS-CoV-2 an infection.

Lastly, we demonstrated that Fc-Fc receptor interactions weren’t required for cover when 2B04 and 2C03 had been administered prophylactically. These findings inform the mechanism of safety and help the rational growth of antibody-mediated safety towards SARS-CoV-2 infections. IMPORTANCE The continuing coronavirus illness 2019 (COVID-19) pandemic, brought on by SARS-CoV-2, has resulted within the lack of thousands and thousands of lives.

Secure and efficient vaccines are thought-about the final word treatment for the worldwide social and financial disruption brought on by the pandemic. Nevertheless, an intensive understanding of the immune correlates of safety towards this virus is missing. Right here, we characterised 4 completely different monoclonal antibodies and evaluated their skill to forestall or deal with SARS-CoV-2 an infection in Syrian hamsters. These antibodies different of their skill to neutralize the virus in vitro.

Prophylactic administration of potent and weakly neutralizing antibodies protected towards SARS-CoV-2 an infection, and this impact was Fc receptor unbiased. The potent neutralizing antibody additionally had therapeutic efficacy and eradicated onward aerosol transmission.

In distinction, minimally neutralizing antibodies supplied no safety towards an infection with SARS-CoV-2 in Syrian hamsters. Mixed, these research spotlight the importance of weakly neutralizing antibodies within the safety towards SARS-CoV-2 an infection and related illness.

The nucleocapsid protein (NP) of extreme acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is vital for a number of steps of the viral life cycle, and is abundantly expressed throughout an infection, making it a really perfect diagnostic goal protein.

This protein has a robust tendency for dimerization and interplay with nucleic acids. For the primary time, excessive titers of NP had been expressed in E. coli with a CASPON tag, utilizing a growth-decoupled protein expression system.

Purification was completed by nuclease remedy of the cell homogenate and a sequence of downstream processing (DSP) steps. An analytical technique consisting of native hydrophobic interplay chromatography hyphenated to multi-angle mild scattering detection (HIC-MALS) was established for in-process management, specifically, to observe product fragmentation and multimerization all through the purification course of.

730 mg purified NP per liter of fermentation may very well be produced by the optimized course of, equivalent to a yield of 77% after cell lysis. The HIC-MALS technique was used to exhibit that the NP product might be produced with a purity of 95%. The molecular mass of the principle NP fraction is according to dimerized protein as was verified by a complementary native size-exclusion separation (SEC)-MALS evaluation.

Peptide mapping mass spectrometry and host cell particular enzyme-linked immunosorbent assay confirmed the excessive product purity, and the presence of a minor endogenous chaperone defined the residual impurities.

SARS-CoV-2 Spike Peptide
9095P	ProSci	0.05 mg	EUR 235.5
Description: (IN) SARS-CoV-2 Spike peptide

SARS-CoV-2 Spike S2 Peptide
9119P	ProSci	0.05 mg	EUR 235.5
Description: (IN) SARS-CoV-2 Spike peptide

SARS-CoV-2 Spike S2 Peptide
9123P	ProSci	0.05 mg	EUR 235.5
Description: (CT) SARS-CoV-2 Spike peptide

SARS-CoV-2 Spike P26S Peptide (Gamma Variant)
9573P	ProSci	0.05 mg	EUR 235.5
Description: SARS-CoV-2 Spike P26S Peptide (Gamma Variant)

SARS-CoV-2 (COVID-19) Spike P681R Peptide (Delta Variant)
9673P	ProSci	0.05 mg	EUR 235.5
Description: SARS-CoV-2 (COVID-19) Spike P681R Peptide (Delta Variant)

SARS-CoV-2 (COVID-19) Alpha Variant (B.1.1.7, UK) Spike P681H Peptide
9359P	ProSci	0.05 mg	EUR 235.5
Description: SARS-CoV-2 (COVID-19) Alpha Variant (B.1.1.7, UK) Spike P681H Peptide

SARS Spike Antibody
20-abx137184	Abbexa	EUR 1262.40 EUR 1846.80 EUR 2064.00	100 ug 200 ug 300 µg

SARS Spike Antibody
20-abx137200	Abbexa	EUR 1412.40 EUR 2264.40 EUR 2665.20	100 ug 200 ug 300 µg

SARS Spike Antibody
24216-100ul	SAB	100ul	EUR 468

SARS Spike Antibody
24217-100ul	SAB	100ul	EUR 468

SARS Spike Antibody
24218-100ul	SAB	100ul	EUR 468

SARS Spike Antibody
24219-100ul	SAB	100ul	EUR 468

SARS Spike Antibody
24318-100ul	SAB	100ul	EUR 468

SARS-CoV Spike Protein
abx060655-1mg	Abbexa	1 mg	EUR 2030.4

SARS-CoV Spike Antibody
3219-002mg	ProSci	0.02 mg	EUR 206.18
Description: SARS-CoV Spike Antibody: A novel coronavirus has been identified as the causative agent of SARS (Severe Acute Respiratory Syndrome). Coronaviruses are a major cause of upper respiratory diseases in humans. The genomes of these viruses are positive-stranded RNA approximately 27-31kb in length. SARS infection can be mediated by the binding of the viral spike protein, a glycosylated 139 kDa protein and the major surface antigen of the virus, to the angiotensin-converting enzyme 2 (ACE2) on target cells. This binding can be blocked by a soluble form of ACE2.

SARS-CoV Spike Antibody
3219-01mg	ProSci	0.1 mg	EUR 523.7
Description: SARS-CoV Spike Antibody: A novel coronavirus has been identified as the causative agent of SARS (Severe Acute Respiratory Syndrome). Coronaviruses are a major cause of upper respiratory diseases in humans. The genomes of these viruses are positive-stranded RNA approximately 27-31kb in length. SARS infection can be mediated by the binding of the viral spike protein, a glycosylated 139 kDa protein and the major surface antigen of the virus, to the angiotensin-converting enzyme 2 (ACE2) on target cells. This binding can be blocked by a soluble form of ACE2.

SARS-CoV Spike Antibody
3221-002mg	ProSci	0.02 mg	EUR 206.18
Description: SARS-CoV Spike Antibody: A novel coronavirus has recently been identified as the causative agent of SARS (Severe Acute Respiratory Syndrome). Coronaviruses are a major cause of upper respiratory diseases in humans. The genomes of these viruses are positive-stranded RNA approximately 27-31kb in length. SARS infection can be mediated by the binding of the viral spike protein, a glycosylated 139 kDa protein and the major surface antigen of the virus, to the angiotensin-converting enzyme 2 (ACE2) on target cells. This binding can be blocked by a soluble form of ACE2.

SARS-CoV Spike Antibody
3221-01mg	ProSci	0.1 mg	EUR 523.7
Description: SARS-CoV Spike Antibody: A novel coronavirus has recently been identified as the causative agent of SARS (Severe Acute Respiratory Syndrome). Coronaviruses are a major cause of upper respiratory diseases in humans. The genomes of these viruses are positive-stranded RNA approximately 27-31kb in length. SARS infection can be mediated by the binding of the viral spike protein, a glycosylated 139 kDa protein and the major surface antigen of the virus, to the angiotensin-converting enzyme 2 (ACE2) on target cells. This binding can be blocked by a soluble form of ACE2.

SARS-CoV Spike Antibody
3223-002mg	ProSci	0.02 mg	EUR 206.18
Description: SARS Spike Antibody: A novel coronavirus has recently been identified as the causative agent of SARS (Severe Acute Respiratory Syndrome). Coronaviruses are a major cause of upper respiratory diseases in humans. The genomes of these viruses are positive-stranded RNA approximately 27-31kb in length. SARS infection can be mediated by the binding of the viral spike protein, a glycosylated 139 kDa protein and the major surface antigen of the virus, to the angiotensin-converting enzyme 2 (ACE2) on target cells. This binding can be blocked by a soluble form of ACE2.

SARS-CoV Spike Antibody
3223-01mg	ProSci	0.1 mg	EUR 523.7
Description: SARS Spike Antibody: A novel coronavirus has recently been identified as the causative agent of SARS (Severe Acute Respiratory Syndrome). Coronaviruses are a major cause of upper respiratory diseases in humans. The genomes of these viruses are positive-stranded RNA approximately 27-31kb in length. SARS infection can be mediated by the binding of the viral spike protein, a glycosylated 139 kDa protein and the major surface antigen of the virus, to the angiotensin-converting enzyme 2 (ACE2) on target cells. This binding can be blocked by a soluble form of ACE2.

SARS-CoV Spike Antibody
3225-002mg	ProSci	0.02 mg	EUR 206.18
Description: SARS-CoV Spike antibody: A novel coronavirus has recently been identified as the causative agent of SARS (Severe Acute Respiratory Syndrome). Coronaviruses are a major cause of upper respiratory diseases in humans. The genomes of these viruses are positive-stranded RNA approximately 27-31kb in length. SARS infection can be mediated by the binding of the viral spike protein, a glycosylated 139 kDa protein and the major surface antigen of the virus, to the angiotensin-converting enzyme 2 (ACE2) on target cells. This binding can be blocked by a soluble form of ACE2.

SARS-CoV Spike Antibody
3225-01mg	ProSci	0.1 mg	EUR 523.7
Description: SARS-CoV Spike antibody: A novel coronavirus has recently been identified as the causative agent of SARS (Severe Acute Respiratory Syndrome). Coronaviruses are a major cause of upper respiratory diseases in humans. The genomes of these viruses are positive-stranded RNA approximately 27-31kb in length. SARS infection can be mediated by the binding of the viral spike protein, a glycosylated 139 kDa protein and the major surface antigen of the virus, to the angiotensin-converting enzyme 2 (ACE2) on target cells. This binding can be blocked by a soluble form of ACE2.

SARS Spike RBD Recombinant Protein
10-211	ProSci	0.1 mg	EUR 651.3
Description: The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensinconverting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.

Recombinant SARS Spike gp C Protein
VAng-Lsx0072-inquire	Creative Biolabs	inquire	Ask for price
Description: SARS Spike glycoprotein C, recombinant protein from E. coli.

Spike (SARS-CoV-2) Lentivirus
78010-1	BPS Bioscience	100 µl	EUR 835
Description: Cell entry of SARS-CoV-2 depends on the binding of viral spike protein to cellular receptor ACE2. The SARS-CoV-2 Spike Lentivirus are replication incompetent, HIV-based, VSV-G pseudotyped lentiviral particles that are ready to be transduced into almost all types mammalian cells, including primary and non-dividing cells. The particles contain the full length SARS-CoV-2 spike gene (QHD43416.1) driven by an EF1a promoter._x000D_

Spike (SARS-CoV-2) Lentivirus
78010-2	BPS Bioscience	500 µl x 2	EUR 2095
Description: Cell entry of SARS-CoV-2 depends on the binding of viral spike protein to cellular receptor ACE2. The SARS-CoV-2 Spike Lentivirus are replication incompetent, HIV-based, VSV-G pseudotyped lentiviral particles that are ready to be transduced into almost all types mammalian cells, including primary and non-dividing cells. The particles contain the full length SARS-CoV-2 spike gene (QHD43416.1) driven by an EF1a promoter._x000D_

SARS-CoV spike protein Antibody
abx023139-100ug	Abbexa	100 ug	EUR 1028.4

SARS-CoV spike protein Antibody
abx023143-100ug	Abbexa	100 ug	EUR 1028.4

SARS-CoV-2 Spike RBD Nanobody
A73680	EpiGentek	Ask for price EUR 882.20	50 ul 100 ul

Spike S2, Fc-Tag (SARS-CoV-2)
100895-1	BPS Bioscience	100 µg	EUR 700
Description: SARS-CoV-2 Spike protein S2 subunit, also known as 2019-nCoV Spike S2, GenBank Accession No. MN908947, a.a. 686-1212, with C-terminal Fc-tag, expressed in a CHO cell expression system. MW=130 kDa.

Spike S2, Fc-Tag (SARS-CoV-2)
100895-2	BPS Bioscience	500 µg_x000D_	EUR 1815
Description: SARS-CoV-2 Spike protein S2 subunit, also known as 2019-nCoV Spike S2, GenBank Accession No. MN908947, a.a. 686-1212, with C-terminal Fc-tag, expressed in a CHO cell expression system. MW=130 kDa.

Sars-Cov, Spike (Middle) Recom Protein
abx060656-1mg	Abbexa	1 mg	EUR 2030.4

Spike S1, Fc fusion (SARS-CoV-2)
100688-2	BPS Bioscience	50 µg	EUR 505
Description: SARS-CoV-2 2019-nCoV Spike protein S1, also known as SARS-CoV s1 and coronavirus spike S1, GenBank Accession No. QHD43416.1, a.a. 16-685, with C-terminal Fc-tag, expressed in a CHO cell expression system. MW= 160 kDa.

SARS Associated Spike Mosaic S Protein
20-abx260156	Abbexa	EUR 1062.00 EUR 410.40 EUR 1646.40	0.5 mg 100 ug 1 mg

Spike S1 (16-685), Fc fusion (SARS-CoV-2)
100688-1	BPS Bioscience	20 µg	EUR 405
Description: SARS-CoV-2 2019-nCoV Spike protein S1, also known as SARS-CoV s1 and coronavirus spike S1, GenBank Accession No. QHD43416.1, a.a. 16-685, with C-terminal Fc-tag, expressed in a CHO cell expression system. MW= 160 kDa.

SARS-CoV-2 Spike Monoclonal Antibody
A73664	EpiGentek	EUR 341.00 EUR 518.10	50 ul 100 ul

Recombinant SARS Spike Protein (aa 1-1190) [His]
VAng-Lsx0063-inquire	Creative Biolabs	inquire	Ask for price
Description: SARS Spike protein (aa 1-1190) [His], recombinant protein from HEK 293 cells.

SARS Matrix Peptide
3527P	ProSci	0.05 mg	EUR 197.7
Description: (NT) SARS Matrix peptide

SARS Matrix Peptide
3529P	ProSci	0.05 mg	EUR 197.7
Description: (CT) SARS Matrix peptide

SARS-CoV-2 (COVID-19) Spike 681P Antibody
9091-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike 681P Antibody
9091-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Sars-Cov, Spike (N-Term) Recom Protein
abx060657-1mg	Abbexa	1 mg	EUR 2247.6

SARS Envelope Peptide
3531P	ProSci	0.05 mg	EUR 197.7
Description: (NT) SARS Envelope peptide

SARS Envelope Peptide
3533P	ProSci	0.05 mg	EUR 197.7
Description: (CT) SARS Envelope peptide

SARS Blocking Peptide
33R-8713	Fitzgerald	100 ug	EUR 216
Description: A synthetic peptide for use as a blocking control in assays to test for specificity of SARS antibody, catalog no. 70R-1445

SARS Blocking Peptide
33R-7048	Fitzgerald	100 ug	EUR 216
Description: A synthetic peptide for use as a blocking control in assays to test for specificity of SARS antibody, catalog no. 70R-1444

SARS-CoV-2 (COVID-19) Spike Antibody
3525-002mg	ProSci	0.02 mg	EUR 206.18
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike Antibody
3525-01mg	ProSci	0.1 mg	EUR 523.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Spike S1 RBD, His-tag (SARS-CoV-2)
100687-1	BPS Bioscience	50 µg	EUR 410
Description: SARS-CoV-2 2019-nCoV Spike protein S1 subunit, receptor binding domain (RBD), also known as SARS-CoV-2 spike RBD, novel coronavirus spike RBD and nCoV spike RBD, GenBank Accession No. QHD43416.1, a.a. 319-541, with C-terminal His-tag, expressed in a CHO cell expression system. MW= 39 kDa.

Spike S1 RBD, His-tag (SARS-CoV-2)
100687-2	BPS Bioscience	100 µg	EUR 520
Description: SARS-CoV-2 2019-nCoV Spike protein S1 subunit, receptor binding domain (RBD), also known as SARS-CoV-2 spike RBD, novel coronavirus spike RBD and nCoV spike RBD, GenBank Accession No. QHD43416.1, a.a. 319-541, with C-terminal His-tag, expressed in a CHO cell expression system. MW= 39 kDa.

Spike S1 RBD, Fc fusion (SARS-CoV-2)
100699-1	BPS Bioscience	50 µg	EUR 410
Description: SARS-CoV-2 2019-nCoV Spike protein S1 subunit, receptor binding domain (RBD), also known as SARS-CoV-2 spike RBD, novel coronavirus spike RBD and nCoV spike RBD, GenBank Accession No. QHD43416.1, a.a. 319-541, with C-terminal Fc-tag, expressed in a CHO cell expression system. MW=50 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Spike S1 RBD, Fc fusion (SARS-CoV-2)
100699-2	BPS Bioscience	100 µg	EUR 520
Description: SARS-CoV-2 2019-nCoV Spike protein S1 subunit, receptor binding domain (RBD), also known as SARS-CoV-2 spike RBD, novel coronavirus spike RBD and nCoV spike RBD, GenBank Accession No. QHD43416.1, a.a. 319-541, with C-terminal Fc-tag, expressed in a CHO cell expression system. MW=50 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

SARS Biotinylated Spike RBD Recombinant Protein
10-212	ProSci	0.1 mg	EUR 752.1
Description: The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensinconverting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.

Recombinant SARS Coronavirus Spike, GST-Tagged
DAG534	Creative Diagnostics	1mg	EUR 1867.2

SARS Associated Spike Mosaic S(M) Protein
20-abx260155	Abbexa	EUR 1062.00 EUR 410.40 EUR 1646.40	0.5 mg 100 ug 1 mg

SARS Associated Spike Mosaic S(N) Protein
20-abx260157	Abbexa	EUR 1062.00 EUR 410.40 EUR 1646.40	0.5 mg 100 ug 1 mg

SARS-CoV-2 (COVID-19) Spike 156-157EF Antibody
9685-002mg	ProSci	0.02 mg	EUR 229.7
Description: SARS-CoV-2 delta variant, a variant of concern (VOC), known as B.1.617.2, was detected in India in October of 2020. However, it rapidly spread all over of the world and now it is the dominant variant in the world, which account for more than 99% of the cases. This variant carries at least 13 mutations in spike protein across the sub lineages, including L452R, D614G, P681R and K417N, which can increase the affinity to the human ACE2 receptor. Enhanced transmission of the Delta variant was observed globally, which is at least 2.5 times more contagious as the other variants. The Delta variant affects the effectiveness of COVID19 vaccine and is resistant to neutralization to some extent.

SARS-CoV-2 (COVID-19) Spike 156-157EF Antibody
9685-01mg	ProSci	0.1 mg	EUR 594.26
Description: SARS-CoV-2 delta variant, a variant of concern (VOC), known as B.1.617.2, was detected in India in October of 2020. However, it rapidly spread all over of the world and now it is the dominant variant in the world, which account for more than 99% of the cases. This variant carries at least 13 mutations in spike protein across the sub lineages, including L452R, D614G, P681R and K417N, which can increase the affinity to the human ACE2 receptor. Enhanced transmission of the Delta variant was observed globally, which is at least 2.5 times more contagious as the other variants. The Delta variant affects the effectiveness of COVID19 vaccine and is resistant to neutralization to some extent.

Spike S1 (16-685), Avi-His-tag (SARS-CoV-2)
100730-1	BPS Bioscience	100 µg	EUR 320
Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), GenBank Accession No. QHD43416.1, a.a. 16-685 with a C-terminal Avi-His-tag, expressed in a HEK293 expression system, MW=78 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Spike S1 (16-685), Avi-His-tag (SARS-CoV-2)
100730-2	BPS Bioscience	1 mg	EUR 2720
Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), GenBank Accession No. QHD43416.1, a.a. 16-685 with a C-terminal Avi-His-tag, expressed in a HEK293 expression system, MW=78 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Spike Trimer (S1+S2), His-tag (SARS-CoV)
100789-1	BPS Bioscience	100 µg	EUR 450
Description: Severe acute respiratory Coronavirus SARS Coronavirus Spike trimer (S1+S2) (SARS-CoV S protein), Genbank Accession No. AAP13567, a.a. 1-1195(full length), with a C-terminal His-tag, expressed in a HEK293 expression system. MW=136 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.

Spike Trimer (S1+S2), His-tag (SARS-CoV)
100789-2	BPS Bioscience	500 µg_x000D_	EUR 1900
Description: Severe acute respiratory Coronavirus SARS Coronavirus Spike trimer (S1+S2) (SARS-CoV S protein), Genbank Accession No. AAP13567, a.a. 1-1195(full length), with a C-terminal His-tag, expressed in a HEK293 expression system. MW=136 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.

Recombinant SARS Spike Mosaic Protein S (N-Terminal)
VAng-Lsx0073-inquire	Creative Biolabs	inquire	Ask for price
Description: SARS spike mosaic protein S (N-terminal), recombinant protein from E. coli.

Spike S1 (B.1.351), Avi-His-Tag (SARS-CoV-2)
100992-1	BPS Bioscience	100 µg	EUR 320
Description: Recombinant SARS-CoV-2 Spike protein, S1 subunit encompassing amino acids 16-685. This protein corresponds to SARS-CoV-2 Variant B.1.351 originally identified in South Africa and contains mutations L18F, D80A, D215G, R246I, K417N, E484K, N501Y, D614G. It also contains a C-terminal Avi-Tag™ followed by a C-terminal His-tag (6xHis). The recombinant protein is ≥90% pure following affinity purification.

Spike S1 (B.1.351), Avi-His-Tag (SARS-CoV-2)
100992-2	BPS Bioscience	1 mg	EUR 2850
Description: Recombinant SARS-CoV-2 Spike protein, S1 subunit encompassing amino acids 16-685. This protein corresponds to SARS-CoV-2 Variant B.1.351 originally identified in South Africa and contains mutations L18F, D80A, D215G, R246I, K417N, E484K, N501Y, D614G. It also contains a C-terminal Avi-Tag™ followed by a C-terminal His-tag (6xHis). The recombinant protein is ≥90% pure following affinity purification.

Recombinant SARS Associated Spike Mosaic S(N)
7-07093	CHI Scientific	100µg	Ask for price

Recombinant SARS Associated Spike Mosaic S(N)
7-07094	CHI Scientific	500µg	Ask for price

Recombinant SARS Associated Spike Mosaic S(N)
7-07095	CHI Scientific	1000µg	Ask for price

Recombinant SARS Associated Spike Mosaic S(M)
7-07096	CHI Scientific	100µg	Ask for price

Recombinant SARS Associated Spike Mosaic S(M)
7-07097	CHI Scientific	500µg	Ask for price

Recombinant SARS Associated Spike Mosaic S(M)
7-07098	CHI Scientific	1000µg	Ask for price

Recombinant SARS Associated Spike Mosaic S©
7-07099	CHI Scientific	100µg	Ask for price

Recombinant SARS Associated Spike Mosaic S©
7-07100	CHI Scientific	500µg	Ask for price

Recombinant SARS Associated Spike Mosaic S©
7-07101	CHI Scientific	1000µg	Ask for price

SARS-CoV-2 (COVID-19) Spike S1 Antibody
9083-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike S1 Antibody
9083-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike S2 Antibody
9119-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike S2 Antibody
9119-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike S2 Antibody
9123-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike S2 Antibody
9123-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Recombinant (E.Coli) SARS Associated Spike Mosaic S
RP-1422	Alpha Diagnostics	100 ug	EUR 343.2

Recombinant (E.Coli) SARS Associated Spike Mosaic S
RP-1423	Alpha Diagnostics	100 ug	EUR 343.2

Recombinant (E.Coli) SARS Associated Spike Mosaic S
RP-1424	Alpha Diagnostics	100 ug	EUR 343.2

SARS-CoV-2 (COVID-19) Spike 681P Antibody (biotin)
9091-biotin-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike 681P Antibody (biotin)
9091-biotin-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike 681P Antibody [8G10A1]
PM-9365-002mg	ProSci	0.02 mg	EUR 229.7
Description: In September of 2020 a new lineage of SARS-CoV-2, known as B.1.1.7 and named as Alpha variant, was discovered in the United Kingdom. This lineage developed 14 lineage-specific amino acid replacements and 3 deletions. These changes caused an increase in transmission of Alpha variant (B.1.1.7 lineage) by at least 50%, leading to increased disease severity and higher death rates. The effectiveness of COVID19 vaccines are not affected by the Alpha variant. One of the mutations associated with this lineage is a N501Y in the spike protein of the virus. It is believed that this mutation is able to increase the spike protein's affinity for the host ACE2 receptor and it has been associated with increased infectivity and virulence. B.1.1.7 viruses have also been shown to have a P681H mutation in the cleavage site of spike protein. This location is one of the residues that make up the furin proteolytic cleavage site between S1 and S2 in spike protein.

SARS-CoV-2 (COVID-19) Spike 681P Antibody [8G10A1]
PM-9365-01mg	ProSci	0.1 mg	EUR 594.26
Description: In September of 2020 a new lineage of SARS-CoV-2, known as B.1.1.7 and named as Alpha variant, was discovered in the United Kingdom. This lineage developed 14 lineage-specific amino acid replacements and 3 deletions. These changes caused an increase in transmission of Alpha variant (B.1.1.7 lineage) by at least 50%, leading to increased disease severity and higher death rates. The effectiveness of COVID19 vaccines are not affected by the Alpha variant. One of the mutations associated with this lineage is a N501Y in the spike protein of the virus. It is believed that this mutation is able to increase the spike protein's affinity for the host ACE2 receptor and it has been associated with increased infectivity and virulence. B.1.1.7 viruses have also been shown to have a P681H mutation in the cleavage site of spike protein. This location is one of the residues that make up the furin proteolytic cleavage site between S1 and S2 in spike protein.

SARS-CoV-2 (COVID-19) Spike 681P Antibody [8G10B1]
PM-9366-002mg	ProSci	0.02 mg	EUR 229.7
Description: In September of 2020 a new lineage of SARS-CoV-2, known as B.1.1.7 and named as Alpha variant, was discovered in the United Kingdom. This lineage developed 14 lineage-specific amino acid replacements and 3 deletions. These changes caused an increase in transmission of Alpha variant (B.1.1.7 lineage) by at least 50%, leading to increased disease severity and higher death rates. The effectiveness of COVID19 vaccines are not affected by the Alpha variant. One of the mutations associated with this lineage is a N501Y in the spike protein of the virus. It is believed that this mutation is able to increase the spike protein's affinity for the host ACE2 receptor and it has been associated with increased infectivity and virulence. B.1.1.7 viruses have also been shown to have a P681H mutation in the cleavage site of spike protein. This location is one of the residues that make up the furin proteolytic cleavage site between S1 and S2 in spike protein.

SARS-CoV-2 (COVID-19) Spike 681P Antibody [8G10B1]
PM-9366-01mg	ProSci	0.1 mg	EUR 594.26
Description: In September of 2020 a new lineage of SARS-CoV-2, known as B.1.1.7 and named as Alpha variant, was discovered in the United Kingdom. This lineage developed 14 lineage-specific amino acid replacements and 3 deletions. These changes caused an increase in transmission of Alpha variant (B.1.1.7 lineage) by at least 50%, leading to increased disease severity and higher death rates. The effectiveness of COVID19 vaccines are not affected by the Alpha variant. One of the mutations associated with this lineage is a N501Y in the spike protein of the virus. It is believed that this mutation is able to increase the spike protein's affinity for the host ACE2 receptor and it has been associated with increased infectivity and virulence. B.1.1.7 viruses have also been shown to have a P681H mutation in the cleavage site of spike protein. This location is one of the residues that make up the furin proteolytic cleavage site between S1 and S2 in spike protein.

SARS-CoV-2 (COVID-19) Spike 681P Antibody [8G10C8]
PM-9367-002mg	ProSci	0.02 mg	EUR 229.7
Description: In September of 2020 a new lineage of SARS-CoV-2, known as B.1.1.7 and named as Alpha variant, was discovered in the United Kingdom. This lineage developed 14 lineage-specific amino acid replacements and 3 deletions. These changes caused an increase in transmission of Alpha variant (B.1.1.7 lineage) by at least 50%, leading to increased disease severity and higher death rates. The effectiveness of COVID19 vaccines are not affected by the Alpha variant. One of the mutations associated with this lineage is a N501Y in the spike protein of the virus. It is believed that this mutation is able to increase the spike protein's affinity for the host ACE2 receptor and it has been associated with increased infectivity and virulence. B.1.1.7 viruses have also been shown to have a P681H mutation in the cleavage site of spike protein. This location is one of the residues that make up the furin proteolytic cleavage site between S1 and S2 in spike protein.

SARS-CoV-2 (COVID-19) Spike 681P Antibody [8G10C8]
PM-9367-01mg	ProSci	0.1 mg	EUR 594.26
Description: In September of 2020 a new lineage of SARS-CoV-2, known as B.1.1.7 and named as Alpha variant, was discovered in the United Kingdom. This lineage developed 14 lineage-specific amino acid replacements and 3 deletions. These changes caused an increase in transmission of Alpha variant (B.1.1.7 lineage) by at least 50%, leading to increased disease severity and higher death rates. The effectiveness of COVID19 vaccines are not affected by the Alpha variant. One of the mutations associated with this lineage is a N501Y in the spike protein of the virus. It is believed that this mutation is able to increase the spike protein's affinity for the host ACE2 receptor and it has been associated with increased infectivity and virulence. B.1.1.7 viruses have also been shown to have a P681H mutation in the cleavage site of spike protein. This location is one of the residues that make up the furin proteolytic cleavage site between S1 and S2 in spike protein.

SARS-CoV-2 (COVID-19) Spike Antibody (HRP)
3525-HRP-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike Antibody (HRP)
3525-HRP-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike RBD Antibody
9087-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike RBD Antibody
9087-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike Matched Pair
MPS-0001	ProSci	1 Set	EUR 1029.3
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike Matched Pair
MPS-0002	ProSci	1 Set	EUR 1029.3
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike Matched Pair
MPS-0003	ProSci	1 Set	EUR 1029.3
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike Matched Pair
MPS-0004	ProSci	1 Set	EUR 1029.3
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike Matched Pair
MPS-0005	ProSci	1 Set	EUR 1029.3
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Spike S1 (13-665), Fc Fusion, Avi-tag (SARS-CoV-2)
100678-1	BPS Bioscience	100 µg	EUR 350
Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), GenBank Accession No. QHD43416.1, a.a. 13-665, fused at the C-terminus of the Fc portion of human IgG1, with a C-terminal Avi-tag™, expressed in a HEK293 expression system, MW=102 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Spike S1 (13-665), Fc Fusion, Avi-tag (SARS-CoV-2)
100678-2	BPS Bioscience	1 mg	EUR 3000
Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), GenBank Accession No. QHD43416.1, a.a. 13-665, fused at the C-terminus of the Fc portion of human IgG1, with a C-terminal Avi-tag™, expressed in a HEK293 expression system, MW=102 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Spike S1 (16-685), Fc Fusion, Avi-tag (SARS-CoV-2)
100719-1	BPS Bioscience	100 µg	EUR 320
Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), GenBank Accession No. QHD43416.1, a.a. 16-685, fused at the C-terminus of the Fc portion of human IgG1, with a C-terminal Avi-tag™, expressed in a HEK293 expression system, MW=104 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Spike S1 (16-685), Fc Fusion, Avi-tag (SARS-CoV-2)
100719-2	BPS Bioscience	1 mg	EUR 2720
Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), GenBank Accession No. QHD43416.1, a.a. 16-685, fused at the C-terminus of the Fc portion of human IgG1, with a C-terminal Avi-tag™, expressed in a HEK293 expression system, MW=104 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

SARS Coronavirus spike (HSZ-Cc) Recombinant Protein
20-219	ProSci	0.1 mg	EUR 726.9
Description: SARS Coronavirus spike (HSZ-Cc) Recombinant Protein

Recombinant Coronavirus Spike Protein (SARS-CoV S2)
P1519-10	Biovision	10µg	EUR 187.2

Recombinant Coronavirus Spike Protein (SARS-CoV S2)
P1519-50	Biovision	50µg	EUR 661.2

Spike S1 RBD, Avi-His-tag (SARS-CoV-2)
100696-1	BPS Bioscience	100 µg	EUR 320
Description: SARS-CoV-2 Spike S1 receptor binding domain (RBD), also known as SARS-CoV-2 Spike 1 RBD, novel coronavirus Spike 1 RBD and nCoV Spike 1 RBD, GenBank Accession No. QHD43416.1, a.a. 319-541, with C-terminal Avi-His-tag, expressed in a HEK293 cell expression system. MW= 29 kDa.

Spike S1 RBD, Avi-His-tag (SARS-CoV-2)
100696-2	BPS Bioscience	1 mg	EUR 3200
Description: SARS-CoV-2 Spike S1 receptor binding domain (RBD), also known as SARS-CoV-2 Spike 1 RBD, novel coronavirus Spike 1 RBD and nCoV Spike 1 RBD, GenBank Accession No. QHD43416.1, a.a. 319-541, with C-terminal Avi-His-tag, expressed in a HEK293 cell expression system. MW= 29 kDa.

Spike Trimer (S1+S2), His-tag (SARS-CoV-2)
100728-1	BPS Bioscience	100 µg	EUR 350
Description: Severe acute respiratory Coronavirus Spike trimer (S1+S2), with 682RRAR685>A, K986P, and V987P mutations, Genbank Accession No. MN908947, a.a. 1-1213, with a C-terminal His-tag, expressed in a HEK293 expression system. MW=139 kDa.

Spike Trimer (S1+S2), His-tag (SARS-CoV-2)
100728-2	BPS Bioscience	1 mg	EUR 2995
Description: Severe acute respiratory Coronavirus Spike trimer (S1+S2), with 682RRAR685>A, K986P, and V987P mutations, Genbank Accession No. MN908947, a.a. 1-1213, with a C-terminal His-tag, expressed in a HEK293 expression system. MW=139 kDa.

SARS-CoV-2 (COVID-19) Spike Antibody (biotin)
3525-biotin-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike Antibody (biotin)
3525-biotin-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

Recombinant SARS-CoV Spike protein [GST] (37 kDa)
VAng-Wyb8620-inquire	Creative Biolabs	inquire	Ask for price
Description: SARS-CoV C-terminal of the Spike protein (37 kDa), recombinant protein from E. coli, 1 mg/mL.

Recombinant SARS-CoV Spike protein [GST] (38 kDa)
VAng-Wyb8621-inquire	Creative Biolabs	inquire	Ask for price
Description: SARS-CoV middle region of the Spike protein (38 kDa), recombinant protein from E. coli, 1 mg/mL.

SARS-CoV-2 Spike P26S Antibody (Gamma Variant)
9573-002mg	ProSci	0.02 mg	EUR 229.7
Description: In January of 2021 a new lineage of SARS-CoV-2, known as P.1 and named as Gamma variant, was discovered in Japan and later spread in Brazil. It is considered as VOC (variant of concern). This variant carries 10 mutations in spike protein, including N501Y, E484K and K417T in RBD, which can increase the affinity to the human ACE2 receptor. Enhanced transmission of the Gamma variant (P.1 lineage) was observed globally, which is 3.5 times more contagious as the original one. The Gamma variant affects the effectiveness of COVID19 vaccine and is resistant to neutralization to some extent due to the immune escape E484K mutation.

SARS-CoV-2 Spike P26S Antibody (Gamma Variant)
9573-01mg	ProSci	0.1 mg	EUR 594.26
Description: In January of 2021 a new lineage of SARS-CoV-2, known as P.1 and named as Gamma variant, was discovered in Japan and later spread in Brazil. It is considered as VOC (variant of concern). This variant carries 10 mutations in spike protein, including N501Y, E484K and K417T in RBD, which can increase the affinity to the human ACE2 receptor. Enhanced transmission of the Gamma variant (P.1 lineage) was observed globally, which is 3.5 times more contagious as the original one. The Gamma variant affects the effectiveness of COVID19 vaccine and is resistant to neutralization to some extent due to the immune escape E484K mutation.

SARS-CoV-2 Spike S1 (16-685) Protein, Avi-His-tag
E80021	EpiGentek	EUR 635.80 EUR 4276.80	100 ul 1 ml

Spike S1 RBD, Mouse Fc-fusion (SARS-CoV-2)
100684-1	BPS Bioscience	20 µg	EUR 295
Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), also known as novel coronavirus spike S1 and nCoV spike S1, GenBank Accession No. QHD43416.1, a.a. 319-541, with a C-terminal mouse Fc-tag (mFc), expressed in a HEK293 cell expression system. MW=50 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

Spike S1 RBD, Mouse Fc-fusion (SARS-CoV-2)
100684-2	BPS Bioscience	50 µg	EUR 435
Description: Severe acute respiratory Coronavirus 2 Spike Glycoprotein S1 (SARS-CoV-2 Spike S1), also known as novel coronavirus spike S1 and nCoV spike S1, GenBank Accession No. QHD43416.1, a.a. 319-541, with a C-terminal mouse Fc-tag (mFc), expressed in a HEK293 cell expression system. MW=50 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.

SARS Coronavirus Spike Mosaic Recombinant protein (Center)
39-122	ProSci	0.1 mg	EUR 556.8
Description: SARS Coronavirus is an enveloped virus containing three outer structural proteins, namely the membrane (M), envelope (E), and spike (S) proteins. Spike (S)-glycoprotein of the virus interacts with a cellular receptor and mediates membrane fusion to allow viral entry into susceptible target cells. Accordingly, S-protein plays an important role in virus infection cycle and is the primary target of neutralizing antibodies.

SARS-CoV-2 (COVID-19) Spike S2 Antibody [5E6]
PM-9429-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike S2 Antibody [5E6]
PM-9429-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2(COVID-19) Spike Recombinant Protein
10-411	ProSci	0.1 mg	EUR 714.3
Description: Protein S (PROS1) is glycoprotein and expressed in many cell types supporting its reported involvement in multiple biological processes that include coagulation, apoptosis, cancer development and progression, and the innate immune response. Known receptors bind S1 are ACE2, angiotensin-converting enzyme 2, DPP4, CEACAM etc.. The spike (S) glycoprotein of coronaviruses is known to be essential in the binding of the virus to the host cell at the advent of the infection process. Most notable is severe acute respiratory syndrome (SARS). The severe acute respiratory syndrome-coronavirus (SARS-CoV) spike (S) glycoprotein alone can mediate the membrane fusion required for virus entry and cell fusion. It is also a major immunogen and a target for entry inhibitors. It's been reported that 2019-nCoV can infect the human respiratory epithelial cells through interaction with the human ACE2 receptor. The spike protein is a large type I transmembrane protein containing two subunits, S1 and S2. S1 mainly contains a receptor binding domain (RBD), which is responsible for recognizing the cell surface receptor. S2 contains basic elements needed for the membrane fusion.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.

SARS-CoV-2 (COVID-19) Spike Recombinant Protein
11-073	ProSci	0.1 mg	EUR 695.4
Description: May down-regulate host tetherin (BST2) by lysosomal degradation, thereby counteracting its antiviral activity.

SARS-CoV-2 (COVID-19) Spike Recombinant Protein
20-233	ProSci	0.1 mg	EUR 726.9
Description: SARS-CoV-2 (COVID-19) Spike Recombinant Protein

Spike S1 (B.1.618 Variant), Avi-His-Tag (SARS-CoV-2)
101126	BPS Bioscience	100 µg	EUR 320
Description: Recombinant SARS-CoV-2 Spike protein S1 subunit, encompassing amino acids 16-685. This protein corresponds to SARS-CoV-2 Variant B.1.618 originally identified in India, and contains deletions Y145 and H146 as well as mutations E484K and D614G. It was constructed with a C-terminal Avi-Tag™ followed by a His-tag (6xHis). The protein was affinity purified.

Spike S1 (B.1.429 Variant), Avi-His-Tag (SARS-CoV-2)
101130	BPS Bioscience	100 µg	EUR 320
Description: Recombinant SARS-CoV-2 Spike protein S1 subunit, encompassing amino acids 16-685. This protein corresponds to SARS-CoV2 variant B.1.429, also known as variant Epsilon originally discovered in California (USA), and contains mutations W152C, L452R and D614G. The construct also contains a C-terminal Avi-Tag™ followed by a His-tag (6xHis). The protein was enzymatically biotinylated using the Avi-Tag™ and affinity purified.

Spike S1 (B.1.617.2 Variant) Avi-His-Tag (SARS-CoV-2)
101151-1	BPS Bioscience	100 µg	EUR 335
Description: Recombinant SARS-CoV-2 Spike protein S1 subunit, encompassing amino acids 16-685. This protein corresponds to SARS-CoV2 variant B.1.617.2, also known as variant Delta originally discovered in India, and contains mutations T19R, G142D, R158G, L452R, T478K, D614G and P681R as well as deletion E156-F157. The construct also contains a C-terminal Avi-Tag™ followed by a His-tag (6xHis). The protein was affinity purified.

Spike S1 (B.1.617.2 Variant) Avi-His-Tag (SARS-CoV-2)
101151-2	BPS Bioscience	1 mg	EUR 2995
Description: Recombinant SARS-CoV-2 Spike protein S1 subunit, encompassing amino acids 16-685. This protein corresponds to SARS-CoV2 variant B.1.617.2, also known as variant Delta originally discovered in India, and contains mutations T19R, G142D, R158G, L452R, T478K, D614G and P681R as well as deletion E156-F157. The construct also contains a C-terminal Avi-Tag™ followed by a His-tag (6xHis). The protein was affinity purified.

Recombinant SARS Spike Mosaic S Protein (aa 408-470, 540-573)
VAng-Lsx0056-inquire	Creative Biolabs	inquire	Ask for price
Description: Recombinant SARS-CoV Spike protein containing 408-470, 540-573 amino acids immunodominant regions was expressed in E. coli and purified by proprietary chromatographic technique.

SARS-CoV-2 (COVID-19) Spike S2 Antibody [4F10]
PM-9428-002mg	ProSci	0.02 mg	EUR 229.7
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike S2 Antibody [4F10]
PM-9428-01mg	ProSci	0.1 mg	EUR 594.26
Description: Coronavirus disease 2019 (COVID-19), formerly known as 2019-nCoV acute respiratory disease, is an infectious disease caused by SARS-CoV-2, a virus closely related to the SARS virus (1). The disease is the cause of the 2019–20 coronavirus outbreak (2). The structure of 2019-nCoV consists of the following: a Spike protein (S), hemagglutinin-esterease dimer (HE), a membrane glycoprotein (M), an envelope protein (E) a nucleoclapid protein (N) and RNA. Coronavirus invades cells through Spike (S) glycoproteins, a class I fusion protein. It is the major viral surface protein that coronavirus uses to bind to the human cell surface receptor. It also mediates the fusion of host and viral cell membrane, allowing the virus to enter human cells and begin infection (3). The spike protein is the major target for neutralizing antibodies and vaccine development (4). The protein modeling suggests that there is strong interaction between Spike protein receptor-binding domain and its host receptor angiotensin-converting enzyme 2 (ACE2), which regulate both the cross-species and human-to-human transmissions of COVID-19 (5). The recent study has shown that the SARS-CoV-2 spike protein binds ACE2 with higher affinity than SARS-CoV spike protein (6).

SARS-CoV-2 (COVID-19) Spike S2 Antibody [P1A6]
SD9785-002mg	ProSci	0.02 mg	EUR 253.22
Description: N/A

SARS-CoV-2 (COVID-19) Spike S2 Antibody [P1A6]
SD9785-01mg	ProSci	0.1 mg	EUR 723.62
Description: N/A

SARS-CoV-2 (COVID-19) Spike S2 Antibody [P1B8]
SD9787-002mg	ProSci	0.02 mg	EUR 253.22
Description: N/A

SARS-CoV-2 (COVID-19) Spike S2 Antibody [P1B8]
SD9787-01mg	ProSci	0.1 mg	EUR 723.62
Description: N/A

SARS-CoV-2 (COVID-19) Spike S2 Antibody [P1G5]
SD9789-002mg	ProSci	0.02 mg	EUR 253.22
Description: N/A

SARS-CoV-2 (COVID-19) Spike S2 Antibody [P1G5]
SD9789-01mg	ProSci	0.1 mg	EUR 723.62
Description: N/A

SARS-CoV-2 (COVID-19) Spike S2 Antibody [P1A9]
SD9791-002mg	ProSci	0.02 mg	EUR 253.22
Description: N/A

SARS-CoV-2 (COVID-19) Spike S2 Antibody [P1A9]
SD9791-01mg	ProSci	0.1 mg	EUR 723.62
Description: N/A

SARS-CoV-2 Spike RBD protein antibody pair 1
CSB-EAP33245	Cusabio	1 pair	EUR 900
Description: This is a set of capture antibody and HRP-conjugated antbody for quantitative detection of SARS-CoV-2 Spike RBD protein for through solid phase sandwich ELISA.

The optimized HIC-MALS technique allows monitoring of the product purity, and concurrently entry its molecular mass, offering orthogonal data complementary to established SEC-MALS strategies. Enhanced resolving energy might be achieved over SEC, attributed to the prolonged variables to tune selectivity in HIC mode.