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Information on EC 2.1.1.354 - [histone H3]-lysine4 N-trimethyltransferase

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IUBMB Comments
This entry describes several enzymes that successively methylate the L-lysine4 residue of histone H3 (H3K4), ultimately generating a trimethylated form. These modifications influence the binding of chromatin-associated proteins. In most cases the trimethylation of this position is associated with gene activation. Unlike the other enzymes, KMT7 catalyses only monomethylation.
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Word Map
The enzyme appears in viruses and cellular organisms
Synonyms
ALR, Arabidopsis homolog of trithorax-1, Ash1L, Ash2L, ASHH1/SDG26, ASHH2, ATX1, chromatin histone H3-lysine 4 methyltransferase, COMPASS, COMPASS chromatin complex, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
3 S-adenosyl-L-methionine + a [histone H3]-L-lysine4 = 3 S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine4
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overall reaction
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S-adenosyl-L-methionine + a [histone H3]-L-lysine4 = S-adenosyl-L-homocysteine + a [histone H3]-N6-methyl-L-lysine4
show the reaction diagram
(1a)
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S-adenosyl-L-methionine + a [histone H3]-N6,N6-dimethyl-L-lysine4 = S-adenosyl-L-homocysteine + a [histone H3]-N6,N6,N6-trimethyl-L-lysine4
show the reaction diagram
(1c)
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S-adenosyl-L-methionine + a [histone H3]-N6-methyl-L-lysine4 = S-adenosyl-L-homocysteine + a [histone H3]-N6,N6-dimethyl-L-lysine4
show the reaction diagram
(1b)
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S-adenosyl-L-methionine + histone L-lysine = S-adenosyl-L-homocysteine + histone N6-methyl-L-lysine
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
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