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Cat No | BIOP2270 |
Conjugate | |
Type | 免疫检查点 |
Source | HEK293 |
Tag | His |
Size | 20 ug |
Application | Immunogen |
Format | Lyophilized |
Concentration | Please refer to the vial lable for the specific concentration. |
Buffer | Supplied in PBS, pH 7.4. |
Species | Human |
Storage | Store at –20 degree. Avoid repeated freeze/thaw cycles. |
Synonyms | B7-H4;B7h.5;B7H4;B7S1;B7X;PRO1291;VCTN1 |
Purification | > 95% by SDS-PAGE. |
MolecularWeight | |
Description | aa 29-258 |
Background | B7 homolog 4 (B7-H4, VTCN1) is a member of the B7 family of cell surface ligands that regulate T cell activation and immune responses.B7-H4 is expressed on the surface of activated lymphocytes, macrophages, monocytes, dendritic cells, epithelial cells, and bone marrow-derived mesenchymal stem cells. Its binding to activated T cells dampens T cell responses and induces cell cycle arrest in the T cell.The B7-H4 protein is also found in ovarian cancer , breast cancer, renal cell carcinoma, and rheumatoid arthritis patients.Research studies indicate that B7-H4 protein is present on the surface of ovarian tumor cells, and that targeted inhibition of B7-H4 using recombinant antibodies restores T cell activation pathways. These studies suggest some potential therapeutic value in blocking B7-H4 function and restoring T cell function in cancer patients. |