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Purified anti-SARS-CoV-2 S Protein S1 Antibody

Pricing & Availability
Clone
A20103H (See other available formats)
Regulatory Status
RUO
Other Names
Spike glycoprotein, Sglycoprotein (E2)
Isotype
Rat IgG2b, κ
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Product Citations
publications
A20103H_PURE_SARS-CoV-2-S-Protein-S1_Antibody_1_120920
Whole cell extracts (15 µg total protein) from 293E cells untransfected (-) or transfected with a plasmid encoding SARS-CoV-2 S protein S1 (+) were resolved by 4-12% Bis-Tris gel electrophoresis, transferred to a PVDF membrane, and probed with 0.5 µg/mL (1:1000 dilution) purified anti-SARS-CoV-2 S protein S1 antibody (clone A20103H) overnight at 4°C. Proteins were visualized by chemiluminescence detection using HRP goat anti-mouse IgG antibody (Cat. No. 405306) at a 1:3000 dilution and Western-Ready™ ECL Substrate Premium Kit (Cat. No. 426319). Direct-Blot™ HRP anti-GAPDH antibody (Cat. No. 607904) was used as a loading control at a 1:25000 dilution (lower). Lane M: Molecular weight marker.
  • A20103H_PURE_SARS-CoV-2-S-Protein-S1_Antibody_1_120920
    Whole cell extracts (15 µg total protein) from 293E cells untransfected (-) or transfected with a plasmid encoding SARS-CoV-2 S protein S1 (+) were resolved by 4-12% Bis-Tris gel electrophoresis, transferred to a PVDF membrane, and probed with 0.5 µg/mL (1:1000 dilution) purified anti-SARS-CoV-2 S protein S1 antibody (clone A20103H) overnight at 4°C. Proteins were visualized by chemiluminescence detection using HRP goat anti-mouse IgG antibody (Cat. No. 405306) at a 1:3000 dilution and Western-Ready™ ECL Substrate Premium Kit (Cat. No. 426319). Direct-Blot™ HRP anti-GAPDH antibody (Cat. No. 607904) was used as a loading control at a 1:25000 dilution (lower). Lane M: Molecular weight marker.
  • A20103H_PURE_SARS-CoV-2-S-Protein-S1_Antibody_2_120920
    200 ng of recombinant SARS-CoV-2 S protein S1 + S2 (Cat. No. 793704) was coated onto a Costar™ 96-well high binding assay plate and incubated with a dilution series of purified anti-SARS-CoV-2 S protein S1 antibody (clone A20103H). Bound antibodies were detected with HRP goat anti-mouse IgG antibody (Cat. No. 405306) followed by TMB substrate solution. Absorbance was measured at 450 nm.
Cat # Size Price Save
944401 25 µg ¥24,640
944402 100 µg ¥73,700
Description

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a single- stranded RNA virus that belongs in a family of viruses known as coronaviruses. SARS-CoV-2 infection, known as COVID-19, was declared a pandemic by WHO on March 11, 2020 and among other symptoms leads to respiratory infection, pulmonary failure which can be fatal. SARS-CoV-2 is structurally composed of 4 main proteins (e.g. spike glycoprotein, envelope glycoprotein, membrane glycoprotein and nucleocapsid protein) and several accessory proteins. The spike glycoprotein (S) is a transmembrane molecule that forms homotrimers on the surface of the virus and facilitates virulence through binding to angiotensin-converting enzyme 2 (ACE2) expressed on host cells. This protein is composed of two subunits S1 and S2. S1 subunit is responsible for binding to the host cell via ACE-2 receptor and S2 for fusion with the host cell.

Product Details
Technical data sheet

Product Details

Verified Reactivity
SARS-CoV-2
Antibody Type
Monoclonal
Host Species
Rat
Immunogen
Partial recombinant protein corresponding to the S1 subunit of SARS-CoV-2 S protein
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide
Preparation
The antibody was purified by affinity chromatography.
Concentration
0.5 mg/mL
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C.
Application

WB - Quality tested
ELISA - Verfied
Recommended Usage

Each lot of this antibody is quality control tested by western blotting. For western blotting, the suggested use of this reagent is 0.25 - 1.0 µg/mL. For ELISA applications, a concentration of 65.4 ng/mL is recommended. It is recommended that the reagent be titrated for optimal performance for each application.

Application Notes

BioLegend offers multiple clones that recognize SARS-CoV-2 S protein S1. Clone A20103H displayed the strongest performance for western blot of all clones validated for the application.

RRID
AB_2890872 (BioLegend Cat. No. 944401)
AB_2890872 (BioLegend Cat. No. 944402)

Antigen Details

Structure
Spike glycoprotein is a homotrimer. Each monomer consists of 1,273 a.a with a molecular weight of approximately 141 kD and consists of S1 and S2 subunits. S1 subunit is 673 a.a. long.
Distribution

Viral envelope protein, host cell membrane, host cell endoplasmic reticulum-Golgi intermediate compartment membrane

Function
Host cell surface receptor binding
Interaction
ACE2
Ligand/Receptor
ACE2
Biology Area
COVID-19
Antigen References
  1. Walls AC, et al. 2020. Cell. 181:281-292.
  2. Yan R, et al. 2020. Science. 367:1444-1448.
  3. Wrapp D, et al. 2020. Science. 367:1260-1263.
  4. Shang J, et al. 2020. Proc Natl Acad Sci U S A. 117:11727-11734.
Gene ID
43740568 View all products for this Gene ID
UniProt
View information about Viral Protein on UniProt.org
Go To Top Version: 1    Revision Date: 12/09/2020

For Research Use Only. Not for diagnostic or therapeutic use.

 

This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.

 

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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