Human BAI1 Antibody Summary
Ala31-Thr879
Accession # O14514
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Scientific Data
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Detection of Mouse BAI1 by Immunocytochemistry/Immunofluorescence Bai1Tg reduces accumulation of apoptotic corpses in Mertk−/− mice post-torsion. (A) Sertoli cell expression of Bai1, BAI1 signaling pathway genes, and Mertk were analyzed by quantitative RT-PCR. Sertoli cells were isolated from Mertk+/+ (n = 4) and Mertk−/− (n = 2) mice and were cultured for 3 days to expand them prior to RNA isolation. Error bars are standard error of mean (SEM). (B) Representative images of isolated Sertoli cells from Mertk−/− and Mertk−/−Bai1Tg mice were stained for BAI1 to confirm surface expression of the Bai1Tg. (C) Mice (8–12 weeks-old) underwent testicular torsion surgery to induce ischemic injury. Testicular cross sections from sham and torsion testes were stained for cleaved caspase 3 (CC3) (black arrowheads). Images are of representative tubule cross sections from matched sham and torsion testes. (D) The number of CC3 positive cells per tubule cross section was determined by analyzing the entire testicular cross section. Each mouse is represented by individual data points within the bars. Mertk+/+ (n = 5) Mertk−/− (n = 8) Mertk−/−Bai1Tg (n = 9). Error bars represent SEM. Statistical analysis was performed with a Wilcoxon rank-sum test. *p < 0.05, ***p < 0.001. Image collected and cropped by CiteAb from the following publication (https://www.nature.com/articles/s41598-017-15191-1), licensed under a CC-BY license. Not internally tested by R&D Systems.
Reconstitution Calculator
Preparation and Storage
- 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.
Background: BAI1
Brain Angiogenesis Inhibitor 1 (BAI1) is a 170 kDa 7-transmembrane domain G protein-coupled receptor (GPCR) that has a large N-terminal extracellular region with an RGD motif, five thrombospondin type I repeats, and a juxtamembrane GPS (GPCR proteolytic cleavage site) (1). Within the extracellular domain (ECD) up to the GPS (amino acids 31‑879), mature human BAI1 shares 94% amino acid sequence identity with mouse and rat BAI1. BAI1 is preferentially expressed on brain neurons but also is found on astrocytes and macrophages and in the pancreas, stomach, and colon (1‑8). BAI1 can be cleaved within the GPS to release a 120 kDa fragment termed Vasculostatin which corresponds to nearly the entire N-terminal ECD (9). Generation of additional soluble fragments suggests the cleavage of BAI1 at multiple sites (9, 10). BAI1 fragments interact with Integrin alpha V beta 5 or CD36 on microvascular endothelial cells to inhibit cell proliferation and migration (10, 11). Overexpression of BAI1 in glioblastoma or pancreatic adenocarcinoma cells inhibits their tumorigenicity and the development of tumor-associated neovascularization (6, 12). Fragments of the ECD, including Vasculostatin, also suppress in vivo angiogenesis and tumor growth (1, 9, 11). BAI1 is down‑regulated in glioblastoma, carcinomas of the pancreas, colon, and stomach and also in experimental ischemia (2, 4, 6‑8). Its expression is inversely correlated with tumor vascularity in colorectal and pulmonary carcinomas (8, 13). On macrophages and astrocytes, BAI1 mediates the phagocytosis of apoptotic cells through recognition of cell surface phosphatidylserine (5).
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- Koh, J.T. et al. (2001) Brain Res. Mol. Brain Res. 87:223.
- Mori, K. et al. (2002) Neurosci. Res. 43:69.
- Kaur, B. et al. (2003) Am. J. Pathol. 162:19.
- Park, D. et al. (2007) Nature 450:430.
- Duda, D.G. et al. (2002) Br. J. Cancer 86:490.
- Lee, J.H. et al. (2001) Int. J. Oncol. 18:355.
- Fukushima, Y. et al. (1998) Int. J. Oncol. 13:967.
- Kaur, B. et al. (2005) Oncogene 24:3632.
- Koh, J.T. et al. (2004) Exp. Cell Res. 294:172.
- Kaur, B. et al. (2009) Cancer Res. 69:1212.
- Kang, X. et al. (2006) Cancer Gene Ther. 13:385.
- Hatanaka, H. et al. (2000) Int. J. Mol. Med. 5:181.
Product Datasheets
Citation for Human BAI1 Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
1 Citation: Showing 1 - 1
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Phosphatidylserine on viable sperm and phagocytic machinery in oocytes regulate mammalian fertilization
Authors: CM Rival, W Xu, LS Shankman, S Morioka, S Arandjelov, CS Lee, KM Wheeler, RP Smith, LB Haney, BE Isakson, S Purcell, JJ Lysiak, KS Ravichandr
Nat Commun, 2019-10-01;10(1):4456.
Species: Mouse
Sample Types: Whole Cells
Applications: Bioassay
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