IUBMB Enzyme Nomenclature


Accepted name: DNA N6-methyladenine demethylase

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

Other name(s): ALKBH1

Systematic name: DNA-N6-methyladenosine,2-oxoglutarate:oxygen oxidoreductase (formaldehyde-forming)

Comments: Contains iron(II). Catalyses oxidative demethylation of DNA N6-methyladenine, a prevalent modification in LINE-1 transposons, which are specifically enriched on the human X chromosome.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number:


1. Wu, T.P., Wang, T., Seetin, M.G., Lai, Y., Zhu, S., Lin, K., Liu, Y., Byrum, S.D., Mackintosh, S.G., Zhong, M., Tackett, A., Wang, G., Hon, L.S., Fang, G., Swenberg, J.A. and Xiao, A.Z. DNA methylation on N-adenine in mammalian embryonic stem cells. Nature 532 (2016) 329-333. [PMID: 27027282]

[EC created 2016]

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