This product is preservative free. It is recommended to add sodium azide to avoid contamination (final concentration 0.05%-0.1%).
This antibody has specificity for Human B7-H4/B7S1/B7x.
B7-H4 (B7x, VTCN1) a costimulatory protein which is reported to function as a negative regulator of T-cell mediated immunity. Although B7-H4 binds an unknown receptor, it is thought to deliver an inhibitory signal to T-cells preventing their proliferation, cell cycle progression and interleukin-2 production. B7-H4 deficient mice are only minimally affected; suggesting B7-H4 is important in the fine tuning of the T-cell mediated immune response. B7-H4 is expressed on activated T-cells, B-cells, monocytes and dendritic cells. Aberrant expression has been associated with cancers of the lung, breast and ovary in humans. B7-H4 is expressed primarily on the membrane of lymphoid cells, and as an immunoinhibitory protein that interacts with receptors on the surface of T lymphocytes, it is involved in mediating cellular and humoral immune responses. Overexpression of B7-H4 is associated with certain malignancies, including ovarian and breast cancer, which may be a mechanism by which tumor cells suppress T cell immunity and facilitate tumor progression. Further, VTCN1 may be a useful biomarker for the early detection of ovarian cancer and Renal Cell Carcinoma (RCC).
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: B7 family member, H4; B7 homolog 4; B7 superfamily member 1; B7-H4; B7h.5; FLJ22418; Immune costimulatory protein B7-H4; Protein B7S1; RP11-229A19.4; T cell costimulatory molecule B7x; T-cell costimulatory molecule B7x; V-set domain-containing T-cell activation inhibitor 1; VTCN1
Gene Aliases: B7-H4; B7h.5; B7H4; B7S1; B7X; PRO1291; UNQ659/PRO1291; VCTN1; VTCN1
UniProt ID: (Human) Q7Z7D3
Entrez Gene ID: (Human) 79679