Recombinant Human CD80 Protein, C-His-tagged

Specification :
| Description : CD80 (B7-1, BB1) and CD86 (B7-2, B70) are members of the B7 family of cell surface ligands that regulate T cell activation and immune responses. CD80 is expressed on activated antigen presenting cells, including dendritic cells, B cells, monocytes, and macrophages. CD86 is expressed on resting monocytes, dendritic cells, activated B lymphocytes, and can be further upregulated in the presence of inflammation. CD80 and CD86 are ligands for CD28, which functions as a T cell costimulatory receptor. Interaction of CD28 with CD80 or CD86 provides the second signal required for naïve T cell activation, T cell proliferation, and acquisition of effector functions. Alternatively, CD80 and CD86 also act as ligands to CTLA-4, which results in the downregulation of T cell activity. | Source : E. coli | Species : Human | Tag : C-His | Molecular Mass : ~23 kDa | AA Sequence : VIHVTKEVKEVATLSCGHNVSVEEL AQTRIYWQKEKKMVLTMMSGDMNIW PEYKNRTIFDITNNLSIVILALRPS DEGTYECVVLKYEKDAFKREHLAEV TLSVKADFPTPSISDFEIPTSNIRR IICSTSGGFPEPHLSWLENGEELNA INTTVSQDPETELYAVSSKLDFNMT TNHSFMCLIKYGHLRVNQTFNWNTT KQEHFPDN | Purity : Transferred into competent cells and the supernatant was purified by NI column affinity chromatography and the purity is > 85% (by SDS-PAGE). | Notes : For research use only, not for use in diagnostic procedure. | Storage : Store at 4 centigrade short term. Aliquot and store at -20 centigrade long term. Avoid freeze-thaw cycles. | Concentration : ≥0.5 mg/mL | Storage Buffer : PBS, 4M Urea, pH7.4