Rabbit anti-Human B7-H4/VTCN1 Polyclonal Antibody

Uniprot Id

Q7Z7D3

Target Species

Human

Target Name

VTCN1

Target Full Name

V-set domain-containing T-cell activation inhibitor 1

Target Function

Negatively regulates T-cell-mediated immune response by inhibiting T-cell activation, proliferation, cytokine production and development of cytotoxicity. When expressed on the cell surface of tumor macrophages, plays an important role, together with regulatory T-cells (Treg), in the suppression of tumor-associated antigen-specific T-cell immunity. Involved in promoting epithelial cell transformation.

Target Subcellular Location

Cell membrane; Single-pass type I membrane protein.

Target Protein Families

Immunoglobulin superfamily, BTN/MOG family

Target Tissue Specificity

Overexpressed in breast, ovarian, endometrial, renal cell (RCC) and non-small-cell lung cancers (NSCLC). Expressed on activated T- and B-cells, monocytes and dendritic cells, but not expressed in most normal tissues (at protein level). Widely expressed, i

Target Research Area

Immunology

Target Synonyms

B7 family member, H4; B7 H4; B7 homolog 4; B7 superfamily member 1; B7 superfamily, member 1; B7-H4; B7h.5; B7h4; B7S1; B7x; BC032925; Immune costimulatory protein B7-H4; Immune costimulatory protein B7H4; MGC41287; PRO1291; Protein B7S1; RP11 229A19.4; T cell costimulatory molecule B7x; T-cell costimulatory molecule B7x; V set domain-containing T cell activation inhibitor 1; V-set domain-containing T-cell activation inhibitor 1; VCTN1; Vtcn1; VTCN1_HUMAN

Target Background

This gene encodes a protein belonging to the B7 costimulatory protein family. Proteins in this family are present on the surface of antigen-presenting cells and interact with ligand bound to receptors on the surface of T cells. Studies have shown that high levels of the encoded protein has been correlated with tumor progression. A pseudogene of this gene is located on chromosome 20. Multiple transcript variants encoding different isoforms have been found for this gene.