Information on EC 1.14.11.65 - [histone H3]-dimethyl-L-lysine9 demethylase

for references in articles please use BRENDA:EC1.14.11.65
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IUBMB Comments
Requires iron(II). This entry describes a group of enzymes that demethylate N-methylated Lys-9 residues in the tail of the histone protein H3 (H3K9). This lysine residue can exist in three methylation states (mono-, di- and trimethylated), but this group of enzymes only act on the the di- and mono-methylated forms. The enzymes are dioxygenases and act by hydroxylating the methyl group, forming an unstable hemiaminal that leaves as formaldehyde. cf. EC 1.14.11.66, [histone H3]-trimethyl-L-lysine9 demethylase.
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The enzyme appears in viruses and cellular organisms
Synonyms
AOF2, AtJMJ17, BHC110, G9A/KMT1C, GLP/KMT1D, H3K4me2 demethylase, H3K9 demethylase, H3K9 histone demethylase, H3K9 Jumonji demethylase, H3K9 mono- and di-demethylase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
a [histone H3]-N6,N6-dimethyl-L-lysine9 + 2 2-oxoglutarate + 2 O2 = a [histone H3]-L-lysine9 + 2 succinate + 2 formaldehyde + 2 CO2
show the reaction diagram
overall reaction
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a [histone H3]-N6,N6-dimethyl-L-lysine9 + 2-oxoglutarate + O2 = a [histone H3]-N6-methyl-L-lysine9 + succinate + formaldehyde + CO2
show the reaction diagram
(1a)
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a [histone H3]-N6-methyl-L-lysine9 + 2-oxoglutarate + O2 = a [histone H3]-L-lysine9 + succinate + formaldehyde + CO2
show the reaction diagram
(1b)
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