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Information on EC 1.14.11.27 - [histone H3]-dimethyl-L-lysine36 demethylase

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IUBMB Comments
Requires iron(II). Of the seven potential methylation sites in histones H3 (K4, K9, K27, K36, K79) and H4 (K20, R3) from HeLa cells, the enzyme is specific for Lys36. Lysine residues exist in three methylation states (mono-, di- and trimethylated). The enzyme preferentially demethylates the dimethyl form of Lys36 (K36me2), which is its natural substrate, to form the monomethylated and unmethylated forms of Lys36. It can also demethylate monomethylated (but not the trimethylated) Lys36. cf. EC 1.14.11.69, [histone H3]-trimethyl-L-lysine36 demethylase.
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Word Map
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
dKDM2, dKDM4A, dRAF, GASC1, H3-K36 demethylase, H3-K36-specific demethylase, H3K36 demethylase, H3K36me2 demethylase, H3K36me2 histone demethylase, H3K36me2-specific demethylase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
a [histone H3]-N6,N6-dimethyl-L-lysine36 + 2 2-oxoglutarate + 2 O2 = a [histone H3]-L-lysine36 + 2 succinate + 2 formaldehyde + 2 CO2
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overall reaction
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a [histone H3]-N6,N6-dimethyl-L-lysine36 + 2-oxoglutarate + O2 = a [histone H3]-N6-methyl-L-lysine36 + succinate + formaldehyde + CO2
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(1a)
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a [histone H3]-N6-methyl-L-lysine36 + 2-oxoglutarate + O2 = a [histone H3]-L-lysine36 + succinate + formaldehyde + CO2
show the reaction diagram
(1b)
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