B7-H4 Antibody [Unconjugated]

Images

 
Western blot shows lysates of mouse placenta tissue, mouse uterus tissue, and SK‑BR‑3 human breast cancer cell line. PVDF membrane was probed with 2 µg/mL of Goat Anti-Mouse B7‑H4 Antigen ...read more
HEK293 human embryonic kidney cell line transfected with either (A) mouse B7-H4 or (B) irrelevant protein and eGFP was stained with Goat Anti-Human/Mouse B7-H4 Polyclonal Antibody (Catalog # AF2154) followed by ...read more

Product Details

Summary
Reactivity Hu, MuSpecies Glossary
Applications WB, Flow, CyTOF-ready
Clonality
Polyclonal
Host
Goat
Conjugate
Unconjugated
Concentration
LYOPH

Order Details

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B7-H4 Antibody [Unconjugated] Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse B7-H4
Phe29-Pro258
Accession # Q7TSP5
Specificity
Detects mouse B7-H4 in direct ELISAs and Western blots. Detects human and mouse B7-H4 in Western blots.
Source
N/A
Isotype
IgG
Clonality
Polyclonal
Host
Goat
Gene
VTCN1
Purity Statement
Antigen Affinity-purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • CyTOF-ready
  • Flow Cytometry 0.25 ug/10^6 cells
  • Western Blot 2 ug/mL
Publications
Read Publications using
AF2154 in the following applications:

  • IHC
    3 publications

Packaging, Storage & Formulations

Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for B7-H4 Antibody [Unconjugated]

  • B7h.5
  • B7H4
  • B7-H4
  • B7H4T-cell costimulatory molecule B7x
  • B7S1
  • B7S1VCTN1
  • B7x
  • B7XPRO1291
  • FLJ22418
  • Immune costimulatory protein B7-H4
  • Protein B7S1
  • T cell costimulatory molecule B7x
  • V-set domain containing T cell activation inhibitor 1
  • V-set domain-containing T-cell activation inhibitor 1
  • Vtcn1

Background

B7-H4, also known as B7x and B7S1, is a 50 ‑ 80 kDa glycosylated member of the B7 family of immune co‑stimulatory proteins (1, 2). Mature mouse B7-H4 consists of a 230 amino acid (aa) extracellular domain (ECD) with one Ig-like V-set domain and one Ig-like C2-set domain which is followed by a hydrophobic C-terminal region (3 - 5). Within the ECD, mouse B7-H4 shares 90% and 99% aa sequence identity with human and rat B7-H4, respectively. It shares 21% ‑ 29% aa sequence identity with mouse B7-1, B7-2, B7-H1, B7-H2, B7‑H3, and PD-L2. B7-H4 is expressed on the surface of activated lymphocytes, macrophages, monocytes, dendritic cells, epithelial cells, and bone marrow-derived mesenchymal stem cells (4 - 8). Its binding to activated T cells dampens T cell responses and induces cell cycle arrest in the T cell (3 - 5). Reverse signaling can induce either cell cycle arrest or apoptosis in the B7-H4 expressing cell (9, 10). B7-H4 is up‑regulated in several carcinomas in correlation with tumor progression and metastasis (2, 7, 11, 12). A soluble form of B7-H4 is elevated in the serum of ovarian cancer, renal cell carcinoma, and rheumatoid arthritis patients, also in correlation with advanced disease status (13 - 15). Soluble B7-H4 functions as a decoy molecule that blocks the inhibitory influence of B7-H4 on immune activation (15). Despite evidence for the involvement of B7-H4 in immune regulation, mice deficient in its expression do not show significant immune deficiencies, suggesting compensation by other molecules in vivo (16).
  1. Yi, K.H. and L. Chen (2009) Immunol. Rev. 229:145.
  2. Salceda, S. et al. (2005) Exp. Cell Res. 306:128.
  3. Zang, X. et al. (2003) Proc. Natl. Acad. Sci. 100:10388.
  4. Prasad, V.R. et al. (2003) Immunity 18:863.
  5. Sica, G.L. et al. (2003) Immunity 18:849.
  6. Kryczek, I. et al. (2006) J. Exp. Med. 203:871.
  7. Tringler, B. et al. (2005) Clin. Cancer Res. 11:1842.
  8. Xue, Q. et al. (2010) Stem Cells Dev. 19:27.
  9. Song, H. et al. (2008) Cancer Lett. 266:227.
  10. Park, G.B. et al. (2009) Immunology 128:360.
  11. Zang, X. et al. (2007) Proc. Natl. Acad. Sci. 104:19458.
  12. Krambeck, A.E. et al. (2006) Proc. Natl. Acad. Sci. 103:10391.
  13. Simon, I. et al. (2006) Cancer Res. 66:1570.
  14. Thompson, R.H. et al. (2008) Cancer Res. 68:6054.
  15. Azuma, T. et al. (2009) PloS Med. 6:e1000166.
  16. Suh, W.-K. et al. (2006) Mol. Cell. Biol. 26:6403.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Publications for B7-H4 Antibody (AF2154)(3)

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Bioinformatics

Gene Symbol VTCN1
Uniprot