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Cynomolgus CD80 / B7-1 Protein (Fc Tag)

CD80

Catalog Number P90268-C02H
Organism Species Cynomolgus
Host Human Cells
Synonyms CD80
Molecular Weight The recombinant cynomolgus CD80 is a disulfide-linked homodimer. The reduced monomer comprises 449 amino acids and has a calculated molecular mass of 50.9 KDa.The apparent molecular mass of the protein is approximately 65 and 44 KDa respectively in SDS-PAGE.
predicted N Val 35
SDS-PAGE
Purity (89.4+9.8) % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the cynomolgus CD80 (AAC31555.1) (Met1-Asn242) was expressed with the Fc region of human IgG1 at the C-terminus.
Bio-activity Immobilized Cynomolgus CTLA4-His (P90213-C08H) at 10 μg/ml (100 μl/well) can bind Cynomolgus CD80-Fc, The EC50 of CynomolgusCD80-Fc is 0.02-0.04 μg/ml.
Research Area Developmental Biology |Embryogenesis |Germ Layer Formation |Ectoderm Marker
Formulation Lyophilized from sterile PBS, pH 7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background The B-lymphocyte activation antigen B7-1 (referred to as B7), also known as CD80, is a member of cell surface immunoglobulin superfamily and is expressed on the surface of antigen-presenting cells including activated B cells, macrophages and dendritic cells. As costimulatory ligands, B7-1 which exists predominantly as dimer and the related protein B7-2, interact with the costimulatory receptors CD28 and cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) expressed on T cells, and thus constitute one of the dominant pathways that regulate T cell activation and tolerance, cytokine production, and the generation of CTL. The B7/CD28/CTLA4 pathway has the ability to both positively and negatively regulate immune responses. CD80 is thus regarded as promising therapeutic targets for autoimmune diseases and various carcinomas.
Reference
  • Greenfield EA, et al. (1998) CD28/B7 costimulation: a review. Crit Rev Immunol. 18(5): 389-418.
  • Zang X, et al. (2007) The B7 family and cancer therapy: costimulation and coinhibition. Clin Cancer Res. 13(18 Pt 1): 5271-9.
  • Mir MA, et al. (2008) Signaling through CD80: an approach for treating lymphomas. Expert Opin Ther Targets. 12(8): 969-79.