Health Dictionary Find a Doctor

Brain-specific angiogenesis inhibitor 3

Brain-specific angiogenesis inhibitor 3 is a protein that in humans is encoded by the BAI3 gene.[1][2]

BAI1, a p53-target gene, encodes brain-specific angiogenesis inhibitor, a seven-span transmembrane protein and is thought to be a member of the secretin receptor family. Brain-specific angiogenesis proteins BAI2 and BAI3 are similar to BAI1 in structure, have similar tissue specificities and may also play a role in angiogenesis.[2]

The adhesion GPCR BaI3 is an orphan receptor that has a long N-terminus consisting of one cub domain, five BaI Thrombospondin type 1 repeats, and one hormone binding domain.[3] BaI3 is expressed in neural tissues of the central nervous system. BaI3 has been shown to have a high affinity for C1q proteins. C1q added to hippocampal neurons expressing BaI3 resulted in a decrease in the number of synapses.

References

References

  1. Shiratsuchi T, Nishimori H, Ichise H, Nakamura Y, Tokino T (Apr 1998). “Cloning and characterization of BAI2 and BAI3, novel genes homologous to brain-specific angiogenesis inhibitor 1 (BAI1)”. Cytogenet Cell Genet. 79 (1–2): 103–8. doi:10.1159/000134693. PMID 9533023.
  2. 2.0 2.1 “Entrez Gene: BAI3 brain-specific angiogenesis inhibitor 3”.
  3. Marc F. Bolliger, David C. Martinelli, and Thomas C. Südhof. The cell-adhesion G protein-coupled receptor BAI3 is a high-affinity receptor for C1q-like proteins. PNAS 2011 ; published ahead of print January 24, 2011, doi:10.1073/pnas.1019577108
External links
Further reading

Further reading

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


Looking for the patient version?

Back to the patient-friendly article

© 2026 MyEClinic – IFTM Institut für Telematik in der Medizin GmbH