Discovery of selective RIO2 kinase small molecule ligand.
Biochim Biophys Acta
; 1854(10 Pt B): 1630-6, 2015 Oct.
Article
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| MEDLINE
| ID: mdl-25891899
ABSTRACT
We report the discovery and initial optimization of diphenpyramide and several of its analogs as hRIO2 kinase ligands. One of these analogs is the most selective hRIO2 ligand reported to date. Diphenpyramide is a Cyclooxygenase 1 and 2 inhibitor that was used as an anti-inflammatory agent. The RIO2 kinase affinity of diphenpyramide was discovered by serendipity while profiling of 13 marketed drugs on a large 456 kinase assay panel. The inhibition values also suggested a relative selectivity of diphenpyramide for RIO2 against the other kinases in the panel. Subsequently three available and eight newly synthesized analogs were assayed, one of which showed a 10 fold increased hRIO2 binding affinity. Additionally, this compound shows significantly better selectivity over assayed kinases, when compared to currently known RIO2 inhibitors. As RIO2 is involved in the biosynthesis of the ribosome and cell cycle regulation, our selective ligand may be useful for the delineation of the biological role of this kinase. This article is part of a Special Issue entitled Inhibitors of Protein Kinases.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Ribosomas
/
Proteínas Serina-Treonina Quinasas
/
Inhibidores de Proteínas Quinasas
Límite:
Humans
Idioma:
En
Revista:
Biochim Biophys Acta
Año:
2015
Tipo del documento:
Article