Human secreted B7-1-Fc fusion protein, also known as CD80, with C-terminal Avi-tag™. GenBank Accession No. NM_005191, a.a 35-242 expressed in a HEK293 cell expression system and enzymatically biotin-labeled using Avi-tag™ technology. MW = 52.5 kDa (monomer). This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.
UniProt P33681 Synonym(s): CTLA-4 Counter-Receptor B7.1 Assay Conditions: Reaction done according to CTLA4:B7-1[biotin] assay kit (Catalog # 72009) protocol. Buffer is PBS + 0.1% BSA. Blocking buffer is Superblock + 0.05% Tween-20. Coat protein was added ON at 4 deg 100 ng/well. Various concentrations of biotinylated ligand (0-8ng/ul, 0.5 ng/ul is the recommended kit condition) added for 2h at RT. Strep-HRP added for 1h at RT. Formulation: 40 mM Tris, pH 8.0, 110 mMNaCl, 2.2 mM KCl, and 20% glycerol. Format: Aqueous buffer solution Storage / Stability: At least 6 months at –80°C. Application(s): Useful for the study of protein-protein interaction and in vitro and in vivo protein function studies. Reference(s):1. Byrum, J.N., Van Komen, J.S., Rodgers, W., J. Immunol. 2013 Sep 15;191(6):3073-3081.
2. Legat, A., et al., Front Immunol. 2013 Dec 19;4:455.
Notes:HiP™ indicates a high purity protein with ≥90% purity as measured by gel filtration.
Warning(s): Avoid freeze/thaw cycles. Protein may be diluted to ≥ 100 μg/ml in PBS + glycerol and stored at -80°C. Scientific Category: Immunotherapy Product Type: Recombinant Protein Data shown is lot-specific. Contact us for specific information on other lots.
