Mouse secreted B7-1, also known as CD80, GenBank Accession No. NM_009855, a.a 38-246, fused at the C-terminus of the Fc portion of human IgG1, with C-terminal Avi-tag, expressed in a HEK293 cell expression system and enzymatically biotinylated using Avi-tag technology. MW=52 kDa. Biotinylation is confirmed to be>=90%.
Immunogen Region
38-246
Tag
C-terminal Fc-Avi-tag
Formulation
8 mM phosphate, pH 7.4, 110 mM NaCl, 2.2 mM KCl, and 20% glycerol.
Species
Mouse
Application
Useful for the study of protein-protein interaction and in vitro and in vivo protein function studies.
Notes
Reaction done similar 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 (mouse CTLA4) was added overnight at 4 deg 100 ng/well. Various amounts of biotinylated ligand (mouse B7-1(B)) (0-50 ng) added for 2h at RT. Strep-HRP added for 1h at RT.
HiP indicates a high purity protein with>=90% purity as measured by gel filtration and aggregation<10%. Avoid freeze/thaw cycles.