Biology:Brain-specific angiogenesis inhibitor 1

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

Brain-specific angiogenesis inhibitor 1 is a protein that in humans is encoded by the BAI1 gene.[1][2] It is a member of the adhesion-GPCR family of receptors.[3]

Function

Angiogenesis is controlled by a local balance between stimulators and inhibitors of new vessel growth and is suppressed under normal physiologic conditions. Angiogenesis has been shown to be essential for growth and metastasis of solid tumors. In order to obtain blood supply for their growth, tumor cells are potently angiogenic and attract new vessels as results of increased secretion of inducers and decreased production of endogenous negative regulators. BAI1 contains at least one 'functional' p53-binding site within an intron, and its expression has been shown to be induced by wildtype p53. There are two other brain-specific angiogenesis inhibitor genes, designated BAI2 and BAI3 which along with BAI1 have similar tissue specificities and structures, however only BAI1 is transcriptionally regulated by p53. BAI1 is postulated to be a member of the secretin receptor family, an inhibitor of angiogenesis and a growth suppressor of glioblastomas.[2]

Interactions

Brain-specific angiogenesis inhibitor 1 has been shown to interact with BAIAP3[4] and MAGI1.[5]

References

  1. "Cloning and characterization of BAI2 and BAI3, novel genes homologous to brain-specific angiogenesis inhibitor 1 (BAI1)". Cytogenetics and Cell Genetics 79 (1–2): 103–8. Apr 1998. doi:10.1159/000134693. PMID 9533023. 
  2. 2.0 2.1 "Entrez Gene: BAI1 brain-specific angiogenesis inhibitor 1". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=575. 
  3. Stacey M, Yona S (2011). AdhesionGPCRs: Structure to Function (Advances in Experimental Medicine and Biology). Berlin: Springer. ISBN 978-1-4419-7912-4. 
  4. "Cloning and characterization of BAP3 (BAI-associated protein 3), a C2 domain-containing protein that interacts with BAI1". Biochemical and Biophysical Research Communications 251 (1): 158–65. Oct 1998. doi:10.1006/bbrc.1998.9408. PMID 9790924. 
  5. "Cloning and characterization of BAI-associated protein 1: a PDZ domain-containing protein that interacts with BAI1". Biochemical and Biophysical Research Communications 247 (3): 597–604. Jun 1998. doi:10.1006/bbrc.1998.8603. PMID 9647739. 

External links

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.