Anti-B7H4/VTCN1 Antibody Picoband® Fluoro488 Conjugated
Product Specifications
Background
V-set domain-containing T-cell activation inhibitor 1 is a protein that in humans is encoded by the VTCN1 gene. It is mapped to 1p13.1-p12. 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.
Synonyms
V-set domain-containing T-cell activation inhibitor 1; B7 homolog 4; B7-H4; B7h.5; Immune costimulatory protein B7-H4; Protein B7S1; T-cell costimulatory molecule B7x; VTCN1; B7H4; UNQ659; PRO1291
Gene Name
VTCN1
Gene ID
79679
UniProt
Q7Z7D3
Host
Rabbit
Reactivity
Human, Mouse, Rat
Cross Reactivity
No cross-reactivity with other proteins.
Immunogen
E.coli-derived human B7H4/VTCN1 recombinant protein (Position: T57-A258) .
Clonality
Polyclonal
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, including in kidney, liver, lung, ovary, placenta, spleen and testis.
Applications
Flow Cytometry
Field of Research
Cell Biology, Co-Activators/Co-Repressors, Epigenetics and Nuclear Signaling, Nuclear Receptors, Nuclear Signaling Pathways, Proteasome / Ubiquitin, Proteolysis/Ubiquitin, Transcription, Transcription Factors, Ubiquitin & Ubiquitin Like Modifiers
Purification
Immunogen affinity purified.
Form
Liquid
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.
References & Citations
1. Krambeck, A. E., Thompson, R. H., Dong, H., Lohse, C. M., Park, E. S., Kuntz, S. M., Leibovich, B. C., Blute, M. L., Cheville, J. C., Kwon, E. D. B7-H4 expression in renal cell carcinoma and tumor vasculature: associations with cancer progression and survival. Proc. Nat. Acad. Sci. 103: 10391-10396, 2006. 2. Kryczek, I., Zou, L., Rodriguez, P., Zhu, G., Wei, S., Mottram, P., Brumlik, M., Cheng, P., Curiel, T., Myers, L., Lackner, A., Alvarez, X., Ochoa, A., Chen, L., Zou, W. B7-H4 expression identifies a novel suppressive macrophage population in human ovarian carcinoma. J. Exp. Med. 203: 871-881, 2006.
Storage Conditions
At -20 ̊C for one year from date of receipt. Avoid repeated freezing and thawing. Protect from light.
Calculated Molecular Weight
96950 MW
Specificity
No cross reactivity with other proteins.
Applications Notes
6
Gene Name Synonym
V-set domain containing T cell activation inhibitor 1
Subcellular Location
Cell membrane. Single-pass type I membrane protein.
Protein Name
Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 2
Isotype
Rabbit IgG
Contents
Each vial contains 50% glycerol, 0.9% NaCl, 0.2% Na2HPO4, 0.02% NaN3.
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