Lavendustin A (RG-14355), isolated from Streptomyces Griseolavendus, is a potent, specific and ATP-competitive inhibitor of tyrosine kinase, with an IC50 of 11 ng/mL for EGFR-associated tyrosine kinase[1]. It suppresses VEGF-induced angiogenesis and blocks the induction of LTPGABA-A[2][3].
References:
[1]. Onoda T, et al. Isolation of a novel tyrosine kinase inhibitor, lavendustin A, from Streptomyces griseolavendus. J Nat Prod. 1989 Nov-Dec;52(6):1252-7.
[2]. Hu DE, et al. Suppression of VEGF-induced angiogenesis by the protein tyrosine kinase inhibitor, lavendustin A. Br J Pharmacol. 1995 Jan;114(2):262-8.
[3]. Gubellini P, et al. Endogenous neurotrophins are required for the induction of GABAergic long-term potentiation in the neonatal rat hippocampus. J Neurosci. 2005 Jun 15;25(24):5796-802.