FEATURES

FAMILY

class V-like SAM-binding methyltransferase superfamily

DESCRIPTION

Also known as EHMT1_HUMAN, EHMT1, EUHMTASE1, GLP, KIAA1876, KMT1D. Histone methyltransferase that specifically mono- and dimethylates 'Lys-9' of histone H3 (H3K9me1 and H3K9me2, respectively) in euchromatin. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting HP1 proteins to methylated histones. Also weakly methylates 'Lys-27' of histone H3 (H3K27me). Also required for DNA methylation, the histone methyltransferase activity is not required for DNA methylation, suggesting that these 2 activities function independently. Probably targeted to histone H3 by different DNA-binding proteins like E2F6, MGA, MAX and/or DP1. During G0 phase, it probably contributes to silencing of MYC- and E2F-responsive genes, suggesting a role in G0/G1 transition in cell cycle. In addition to the histone methyltransferase activity, also methylates non-histone proteins: mediates dimethylation of 'Lys-373' of p53/TP53. Represses the expression of mitochondrial function-related genes, perhaps by occupying their promoter regions, working in concert with probable chromatin reader BAZ2B (By similarity). Heterodimer; heterodimerizes with EHMT2. Interacts with WIZ and EHMT2. Part of the E2F6.com-1 complex in G0 phase composed of E2F6, MGA, MAX, TFDP1, CBX3, BAT8, EHMT1, RING1, RNF2, MBLR, L3MBTL2 and YAF2. Interacts (via ANK repeats) with RELA (when monomethylated at 'Lys-310') (PubMed:21515635). Interacts with MPHOSPH8. Interacts with CDYL. Interacts with REST only in the presence of CDYL. Part of a complex containing at least CDYL, REST, WIZ, SETB1, EHMT1 and EHMT2. Interacts with BAZ2B (By similarity).

Also known as EHMT1_HUMAN, EHMT1, EUHMTASE1, GLP, KIAA1876, KMT1D. Histone methyltransferase that specifically mono- and dimethylates 'Lys-9' of histone H3 (H3K9me1 and H3K9me2, respectively) in ...

EXTERNAL LINKS

EHMT1

Mutations

Mutation(s) distribution

Mutations table