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<strong>Figure 1 ELISA Validation of Spike 681P Antibodies with SARS-CoV-2 Spike S1 Protein </strong><br>Coating Antigens: SARS-CoV-2 spike S1 proteins: WT and alpha variant (B.1.1.7, UK), 2 μg/mL, incubated at 4 °C overnight.Detection Antibodies: SARS-CoV-2 Spike 681P antibody, PM-9365, dilution: 1-3000 ng/mL, incubated at RT for 1 hr.Secondary Antibodies: Goat anti-mouse HRP at 1:5,000, incubated at RT for 1 hr.<strong>SARS-CoV-2 spike 681P antibody (PM-9365) detected WT spike S1 protein (10-300), but not alpha variant spike S1 protein by ELISA. </strong>
<strong>Figure 2 WB Validation of Spike 681P Antibodies with SARS-CoV-2 Spike S1 Protein </strong><br>Loading: 30 ng of SARS-CoV-2 spike S1 proteins: WT and alpha variant (B.1.1.7, UK).Detection Antibodies: SARS-CoV-2 Spike 681P antibody, PM-9365, 1 μg/mL, incubated at RT for 1 hr.Secondary Antibodies: Goat anti-mouse HRP at 1:5,000, incubated at RT for 1 hr.<strong>SARS-CoV-2 spike 681P antibody (PM-9365) detected WT spike S1 protein (10-300), but not alpha variant spike S1 protein by WB. </strong>
<strong>Figure 3 ELISA Validation of Spike 681P Antibodies with Mutant and WT Peptide </strong><br>Coating Antigen: SARS-CoV-2 spike S1 peptides: WT (9091P) and alpha variant (B.1.1.7, UK) (9359P), 1 μg/mL, incubate at 4 °C overnight.Detection Antibodies: SARS-CoV-2 681P antibody, PM-9365, dilution: 0.3-1000 ng/mL, incubated at RT for 1 hr.Secondary Antibodies: Goat anti-mouse HRP at 1:5,000, incubated at RT for 1 hr.<strong>SARS-CoV-2 spike 681P antibody (PM-9365) detected WT peptide (681P, 9091P), but not alpha variant spike S1 peptide (681H, 9359P). </strong>
Figure 1 ELISA Validation of Spike 681P Antibodies with SARS-CoV-2 Spike S1 Protein
Coating Antigens: SARS-CoV-2 spike S1 proteins: WT and alpha variant (B.1.1.7, UK), 2 μg/mL, incubated at 4 °C overnight.Detection Antibodies: SARS-CoV-2 Spike 681P antibody, PM-9365, dilution: 1-3000 ng/mL, incubated at RT for 1 hr.Secondary Antibodies: Goat anti-mouse HRP at 1:5,000, incubated at RT for 1 hr.SARS-CoV-2 spike 681P antibody (PM-9365) detected WT spike S1 protein (10-300), but not alpha variant spike S1 protein by ELISA.
New
Trial Size

SARS-CoV-2 (COVID-19) Spike 681P Antibody [8G10A1]

CATALOG NUMBER: PM-9365

Clonality:
Monoclonal
Tested Applications:
ELISA, WB
Host Species:
Mouse
Species Reactivity:
Virus
Conjugate:
Unconjugated
Specifications
Host Species:
Mouse
Species Reactivity:
Virus
Homology:
Predicted reactivity based on immunogen sequence: SARS-CoV Spike proteins: (25%)
Immunogen:
Anti-SARS-CoV-2 (COVID-19) Spike 681P antibody (PM-9365) was raised against a peptide corresponding to 12 amino acids near the center of SARS-CoV-2 Spike protein.
The immunogen is located within 650-700 amino acids of the SARS-CoV-2 Spike protein.
Conjugate:
Unconjugated
Tested Applications:
ELISA, WB
Application Note:
WB: 1 μg/mL.
Antibody validated: Western Blot in human samples. Anti-SARS-CoV-2 Spike 681P antibody can detect SARS-CoV-2 WT Spike S1 protein, but not SARS-CoV-2 Alpha Variant (B.1.1.7, UK) S1 protein by ELISA and WB. It can also detect WT peptide (681P), but not mutant peptide (681H). All other applications and species not yet tested.
Purification:
SARS-CoV-2 Spike 681P antibody is Protein A purified.
Clonality:
Monoclonal
Isotype:
IgG3
physical-state:
Liquid
Buffer:
Anti-SARS-CoV-2 Spike 681P antibody is supplied in PBS containing 0.02% sodium azide.
Concentration:
1 mg/mL
Storage Conditions:
SARS-CoV-2 Spike 681P antibody can be stored at 4°C for three months and -20°C, stable for up to one year. As with all antibodies care should be taken to avoid repeated freeze thaw cycles. Antibodies should not be exposed to prolonged high temperatures.
Ncbi Official Symbol:
S
Additional Names:
SARS-CoV-2 Spike 681P antibody: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Surface Glycoprotein, Spike protein
Protein Accession Number:
QHD43416
Protein Gi Number:
1791269090
Ncbi Gene Id Number:
43740568
User Note:
Optimal dilutions for each application to be determined by the researcher.
Background:
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.
Background Reference 1:
Duchene et al. Virus Evolution 6(2): veaa061.
Background Reference 2:
Gu et al. Science 369(6511):1603-1607
Background Reference 3:
Hoffmann et al. Molecular Cell 78(4):779-784.e5
Background Reference 4:
Davies et al. Science 372(6538):eabg3055.
Background Reference 5:
Davies et al. Nature. 593(7858):270-274.
Background Reference 6:
Graham, et al. The Lancet Public Health. 6(5): e335-e345.
Background Reference 7:
Horby et al. New & Emerging Threats Advisory Group. 2020;91:264-266.

FOR RESEARCH USE ONLY

For additional information, visit ProSci’s Terms & Conditions Page.

Disclaimer:
Optimal dilutions/concentrations should be determined by the end user. The information provided is a guideline for product use. This product is for research use only.

CATALOG NUMBER:

PM-9365

List Size:
0.02 mg, 0.1 mg

List Price:

Price range: $99.00 through $445.00

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$65 Standard Overnight flat rate for as many products shipped within the United States.

$35 Dry Ice Shipment fee may be required on some items.

Note: Online orders only accepted for shipment within the USA. Click here for the list of international distributors.

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