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Information on EC 2.1.1.372 - [histone H4]-lysine20 N-trimethyltransferase

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IUBMB Comments
The enzyme, characterized from the fission yeast Schizosaccharomyces pombe, catalyses three successive methylations of the L-lysine-20 residue of histone H4 (H4K20), forming the trimethylated form. The methylation of this site is apparently not involved in the regulation of gene expression or heterochromatin function but participates in DNA damage response. cf. EC 2.1.1.361, [histone H4]-lysine20 N-methyltransferase, and EC 2.1.1.362, [histone H4]-N-methyl-L-lysine20 N-methyltransferase.
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The enzyme appears in viruses and cellular organisms
Synonyms
NSD3, SET9, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
3 S-adenosyl-L-methionine + a [histone H4]-L-lysine20 = 3 S-adenosyl-L-homocysteine + a [histone H4]-N6,N6,N6-trimethyl-L-lysine20
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overall reaction
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S-adenosyl-L-methionine + a [histone H4]-L-lysine20 = S-adenosyl-L-homocysteine + a [histone H4]-N6-methyl-L-lysine20
show the reaction diagram
(1a)
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S-adenosyl-L-methionine + a [histone H4]-N6,N6-dimethyl-L-lysine20 = S-adenosyl-L-homocysteine + a [histone H4]-N6,N6,N6-trimethyl-L-lysine20
show the reaction diagram
(1c)
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S-adenosyl-L-methionine + a [histone H4]-N6-methyl-L-lysine20 = S-adenosyl-L-homocysteine + a [histone H4]-N6,N6-dimethyl-L-lysine20
show the reaction diagram
(1b)
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PATHWAY SOURCE
PATHWAYS
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