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Selective Inhibitors of the JMJD2 Histone Demethylases: Combined Nondenaturing Mass Spectrometric Screening and Crystallographic Approaches

DOI: 10.1021/jm901680b DOI Help
PMID: 20088513 PMID Help

Authors: Nathan Rose (University of Oxford) , Esther C. Y. Woon (University of Oxford) , Guy L. Kingham (University of Oxford) , Oliver N. F. King (University of Oxford) , Jasmin Mecinovic (University of Oxford) , Ian J. Clifton (University of Oxford) , Stanley S. Ng (University of Oxford) , Jobina Talib-hardy (University of Oxford) , Udo Oppermann (University of Oxford) , Michael Mcdonough (Department of Chemistry, University of Oxford) , Christopher J. Schofield (Department of Chemistry, University of Oxford)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Medicinal Chemistry , VOL 53 (4) , PAGES 1810-1818

State: Published (Approved)
Published: January 2010

Open Access Open Access

Abstract: Ferrous ion and 2-oxoglutarate (2OG) oxygenases catalyze the demethylation of N?-methylated lysine residues in histones. Here we report studies on the inhibition of the JMJD2 subfamily of histone demethylases, employing binding analyses by nondenaturing mass spectrometry (MS), dynamic combinatorial chemistry coupled to MS, turnover assays, and crystallography. The results of initial binding and inhibition assays directed the production and analysis of a set of N-oxalyl-d-tyrosine derivatives to explore the extent of a subpocket at the JMJD2 active site. Some of the inhibitors were shown to be selective for JMJD2 over the hypoxia-inducible factor prolyl hydroxylase PHD2. A crystal structure of JMJD2A in complex with one of the potent inhibitors was obtained; modeling other inhibitors based on this structure predicts interactions that enable improved inhibition for some compounds.

Journal Keywords: Binding; Competitive; Combinatorial; Crystallography; X-Ray; Humans; Jumonji; Models; Molecular; Oxalates; Spectrometry; Mass; Electrospray; Spectrometry; Mass; Matrix-Assisted; Structure-Activity; Tyrosine

Subject Areas: Biology and Bio-materials

Instruments: I03-Macromolecular Crystallography

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