Recombinant Human BAI1 Protein, CF Summary
Product Specifications
When 4 x 104 cells per well are added to rhBAI1 coated plates (0.5 μg/mL, 100 μL/well), approximately 40%-70% will adhere after 1 hour at 37° C.
Optimal dilutions should be determined by each laboratory for each application.
Ala31-Thr879, with a C-terminal 6-His tag
Analysis
Product Datasheets
Carrier Free
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
4969-BA
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 200 μg/mL in PBS. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Reconstitution Calculator
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 downregulated 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).
- Nishimori, H. et al. (1997) Oncogene 15:2145.
- 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.
Citations for Recombinant Human BAI1 Protein, CF
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.
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Brain-specific angiogenesis inhibitor 1 is expressed in the Myo/Nog cell lineage
Authors: J Gerhart, J Bowers, L Gugerty, C Gerhart, M Martin, F Abdalla, A Bravo-Nuev, JT Sullivan, R Rimkunas, A Albertus, L Casta, L Getts, R Getts, M George-Wei
PLoS ONE, 2020-07-02;15(7):e0234792.
Species: Human
Sample Types: Protein
Applications: ELISA Standard -
Oxidatively modified phosphatidylserines on the surface of apoptotic cells are essential phagocytic 'eat-me' signals: cleavage and inhibition of phagocytosis by Lp-PLA2.
Authors: Tyurin V, Balasubramanian K, Winnica D, Tyurina Y, Vikulina A, He R, Kapralov A, Macphee C, Kagan V
Cell Death Differ, 2014-01-24;21(0):825.
Applications: Bioassay
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