R&D Systems代理AF1214 Rat B7-1/CD80 Affinity Purified Polyclonal Ab (100 UG)

2025-06-25

货号:AF1214

品牌:R&D Systems

规格:100ug

目录价:¥5040.00

市场价格:¥4032.00

会员价格:¥4032.00

  • 到货时间:3~4周

    金山科研平台,产品价格货期咨询微信:jinshanbio Molecule Information: B7-1/CD80 Aliases: CD80 Entrez Gene IDs: 941 (Human); 12519 (Mouse); 25408 (Rat) Background: B7-1

    View B7-1 IHC images. B7-1 and B7-2, together with their receptors CD28 and CTLA4, constitute one of the dominant costimulatory pathways that regulate T and B cell responses. Although both CTLA4 and CD28 can bind to the same ligands, CTLA4 binds to B7-1 and B7-2 with a 20-100 fold higher affinity than CD28 and is involved in the downregulation of the immune response. B7-1 is expressed on activated B cells, activated T cells, and macrophages. B7-2 is constitutively expressed on interdigitating dendritic cells, Langerhans cells, peripheral blood dendritic cells, memory B cells, and germinal center B cells. Additionally, B7-2 is expressed at low levels on monocytes and can be upregulated through interferon gamma. B7-1 and B7-2 are both members of the Immunoglobulin superfamily.

    Human B7-1 is a 288 amino acid (aa) protein containing a 34 aa signal peptide, a 208 aa extracellular domain, a 21 aa transmembrane domain, and a 25 aa cytoplasmic domain. Human B7-1 and B7-2 share 26% amino acid identity. Human and mouse B7-1 share 44% amino acid identity. However, it has been observed that both human and mouse B7-1 and B7-2 can bind to either human or mouse CD28 and CTLA 4, suggesting that there are conserved amino acids which form the B7-1/B7-2/CD28/CTLA4 critical binding sites.

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