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Human UTY(KDM6C) Is a Male-Specific Nϵ-methyl Lysyl Demethylase

Human UTY(KDM6C) Is a Male-Specific Nϵ-methyl Lysyl Demethylase

Louise J Walport, Richard J Hopkinson, Melanie Vollmar, Sarah K Madden, Carina Gileadi, Udo Oppermann, Christopher J Schofield, Catrine Johansson

J Biol Chem. 2014 Jun 27;289(26):18302-13.

PMID: 24798337

Abstract:

The Jumonji C lysine demethylases (KDMs) are 2-oxoglutarate- and Fe(II)-dependent oxygenases. KDM6A (UTX) and KDM6B (JMJD3) are KDM6 subfamily members that catalyze demethylation of N(ϵ)-methylated histone 3 lysine 27 (H3K27), a mark important for transcriptional repression. Despite reports stating that UTY(KDM6C) is inactive as a KDM, we demonstrate by biochemical studies, employing MS and NMR, that UTY(KDM6C) is an active KDM. Crystallographic analyses reveal that the UTY(KDM6C) active site is highly conserved with those of KDM6B and KDM6A. UTY(KDM6C) catalyzes demethylation of H3K27 peptides in vitro, analogously to KDM6B and KDM6A, but with reduced activity, due to point substitutions involved in substrate binding. The results expand the set of human KDMs and will be of use in developing selective KDM inhibitors.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42416059	JMJD3/KDM6B Active human			Price

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