BA 1 is a potent agonist for the bombesin (BB) family of receptors. BA 1 binds with high affinity to Bombesin receptor subtype-3 (BRS3), gastrin releasing peptide receptor (GRPR), neuromedin B receptor (NMBR) with IC50s of 6, 0.4, 2.5 nM[1].
References
[1] Terry W Moody, et al. ML-18 is a non-peptide bombesin receptor subtype-3 antagonist which inhibits lung cancer growth. Peptides. 2015 Feb;64:55-61. DOI:10.1016/j.peptides.2014.12.005
