Histone methyltransferase

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<StructureSection load='1o9s' size='350' side='right' caption='Human histone-lysine N-methyltrasferase Smyd2 complex with S-adenosyl methionine (PDB entry 2pm4)' scene=>

FunctionFunction

Histone methyltransferase (HMT) are histone-lysine N-methyltransferase (KHMT) and histone-arginine N-methyltransferase (RHMT) which catalyzes the transfer of methyl groups to lysine and arginine residues of histones[1]. HMT use S-adenosyl methionine (SAM) or S-adenosyl homocysteine (SAH) as the methyl donor. KHMT can be SET domain-containing or non-SET domain-containing. The SET domain contains the catalytic core of KHMT and targets the lysine tail region of KHMT. CxxC domain is a zinc finger domain.

RelevanceRelevance

Inhibitors of the histone-lysine N-methyltransferase SMYD2 which represses the tumor-suppressing activities of p53 are studied as cancer therapy drugs.

DiseaseDisease

Aberrant HMT plays a role in cancer, intellectual disability syndromes and regulation of tissue aging[2].

3D Structures of histone methyltransferase3D Structures of histone methyltransferase

Updated on 24-March-2016

ReferencesReferences

  1. Trievel RC. Structure and function of histone methyltransferases. Crit Rev Eukaryot Gene Expr. 2004;14(3):147-69. PMID:15248813
  2. Greer EL, Shi Y. Histone methylation: a dynamic mark in health, disease and inheritance. Nat Rev Genet. 2012 Apr 3;13(5):343-57. doi: 10.1038/nrg3173. PMID:22473383 doi:http://dx.doi.org/10.1038/nrg3173

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman