Mfg Part Number
Ab01666-21.0

Vector Labs Ab01666-21.0 Anti-SARS-CoV S glycoprotein [4D4], Mouse IgM, kappa (50 μg)

Quick Overview
The original antibody was generated by immunizing a non human transgenic animal XENOMOUSE® IgG2k mice against S1 protein-Ig fragments (ectodomain) of the S Protein (Tor2).
$692.90
Order will ship within 1-3 business days
Add to Wish List
Product Class:Purified
Clone ID:4D4
Synonyms:Spike protein; S protein; SARS-CoV S protein; S glycoprotein; E2; Peplomer protein; Spike protein S1
Amount:50 μg
Application Codes Clone:NTRL; ELISA
Shipping Temperature:Wet Ice
Buffer Composition:PBS with 0.02% Proclin 300.
Original Format:IgG2
Storage Temperature:Store at 4⁰C for up to 3 months. For longer storage, aliquot and store at -20⁰C.
Chimeric Use Statement:This chimeric mouse antibody was made using the variable domain sequences of the original Human IgG2 format, for improved compatibility with existing reagents, assays and techniques.
Specificity Statement:This antibody specifically binds the amino acids 318-510 in the S1 domain of the SARS-CoV Spike protein (Urbani strain).
Application Notes:This antibody inhibits the association of SARS-CoV s protein to the angiotensin-converting enzyme 2 (ACE2) receptor by binding to specific amino acids on the S1 domain of the spike protein of the virus. The originally characterized antibody had a neutralizing titer 200TCID50 of 12.5 μg/ml (Coughlin et at.,2006). When incubated with S12–510- Fc recombinant protein it failed to block the interaction of this protein with the cellular receptor but inhibited a post-binding event and prevented viral entry. Combination of this antibody with another antibody 5D3, that binds to a different epitope resulted in increased inhibition of virus. The ability of mAb 4D4 to more efficiently inhibit viral entry when added post virus binding suggests that the S protein might undergo a conformational change following binding to ACE2 leading to unmasking of the epitope recognized by the 4D4 antibody. Simultaneously, 4D4 was also used in a standardentry inhibition assay as a positive control for determining the degree of inhibition of pseudotyped virus entry. (Coughlin et at.,2009). This antibody 4D4 showed about 50% binding to Sin845 S1 protein relative to their binding to Urbani S1 protein. GZ0402-S1 protein showed minimal of 57% binding to HmAbs 4D4 (Elshabrawy et al., 2012). Other applications include ELISA.
More Information
Brand Vector Labs
UNSPSC 12161500