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1.14.11.51: DNA N6-methyladenine demethylase

This is an abbreviated version!
For detailed information about DNA N6-methyladenine demethylase, go to the full flat file.

Word Map on EC 1.14.11.51

Reaction

N6-methyladenine in DNA
+
2-oxoglutarate
+
O2
=
adenine in DNA
+
formaldehyde
+
succinate
+
CO2

Synonyms

6mA DNA demethylase, ALKBH1, DMAD, DNA 6mA demethylase, NMAD, NMAD-1

ECTree

     1 Oxidoreductases
         1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
             1.14.11 With 2-oxoglutarate as one donor, and incorporation of one atom of oxygen into each donor
                1.14.11.51 DNA N6-methyladenine demethylase

Substrates Products

Substrates Products on EC 1.14.11.51 - DNA N6-methyladenine demethylase

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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
N6-methyladenine in DNA + 2-oxoglutarate + O2
adenine in DNA + formaldehyde + succinate + CO2
show the reaction diagram
additional information
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ALKBH1 prefers bubbled or bulged DNAs as substrate. The middle N6-mA in the 3-nt bulge is efficiently demethylated compared to that in the 3-nt bubble (97% vs. 18% demethylation fraction) and the 1st and 3rd N6-mAs are more resistant to demethylation. N6-mAs deposited in the flexible region of hairpin (DNA stem loop), D-loop and R-loop are efficiently demethylated as in bubble and bulge, while those in cruciform and replication fork are less demethylated. m6rA in RNA hairpin, RNA-RNA bubble and RNA-DNA hybrid bubble can also be demethylated by ALKBH1, as well as 5-methylcytosine at anticodon loop and 1-methyladenosine
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