Evaluation of phenylaminopyrimidines as antifungal protein kinase inhibitors.

Autor: Pillonel C; Syngenta Crop Protection AG, Basel, Switzerland. chrispill@bluewin.ch
Jazyk: angličtina
Zdroj: Pest management science [Pest Manag Sci] 2005 Nov; Vol. 61 (11), pp. 1069-76.
DOI: 10.1002/ps.1080
Abstrakt: The effects of diverse phenylaminopyrimidines (PAP), namely PAP-pyridines (type A), PAP-pyrazoles (type B) and PAP-thiazoles (type C), on Neurospora crassa Shear & Dodge has been investigated. The results revealed that type A strongly inhibit the in vitro growth of N crassa, whereas types B and C are much less active. A significant correlation was observed between the Neurospora growth inhibition and the intrinsic activity of type A compounds on the cyclin-dependent protein kinase p34(CDC2) of starfish, suggesting that the target of phenylaminopyrimidines in fungi is a cyclin-dependent protein kinase (CDK). The phenylaminopyrimidine-binding CDKs Phoss (major band) and CDC2 (minor band) involved in phosphorus uptake, glycogen synthesis and the cell cycle were identified from N crassa by affinity chromatography on phenylaminopyrimidine-sepharose. Comparative experiments with different protein kinases revealed the importance of the side chain of phenylaminopyrimidines for their target selectivity. A type B compound was found to selectively inhibit the MAP-kinase OS-2 involved in the osmoregulatory pathway of Neurospora.
(Copyright 2005 Society of Chemical Industry.)
Databáze: MEDLINE
Externí odkaz: