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EC 1.1.99.37 Details
EC number
1.1.99.37
Accepted name
methanol dehydrogenase (nicotinoprotein)
Reaction
methanol + acceptor = formaldehyde + reduced acceptor
Other name(s)
NDMA-dependent methanol dehydrogenase, nicotinoprotein methanol dehydrogenase, methanol:N,N-dimethyl-4-nitrosoaniline oxidoreductase
Systematic name
methanol:acceptor oxidoreductase
Comment
Contains Zn2+ and Mg2+. Nicotinoprotein methanol dehydrogenases have a tightly bound NADP+/NADPH cofactor that does not dissociate during the catalytic process. Instead, the cofactor is regenerated by a second substrate or electron carrier. While the in vivo electron acceptor is not known, N,N-dimethyl-4-nitrosoaniline (NDMA), which is reduced to 4-(hydroxylamino)-N,N-dimethylaniline, can serve this function in vitro. The enzyme has been detected in several Gram-positive methylotrophic bacteria, including Amycolatopsis methanolica, Rhodococcus rhodochrous and Rhodococcus erythropolis [1-3]. These enzymes are decameric, and possess a 5-fold symmetry [4]. Some of the enzymes can also dismutate formaldehyde to methanol and formate [5].
History
created 2010
EC Tree
2.5.1.12 created 1972, deleted 1976
2.5.1.13 created 1972, deleted 1976
2.5.1.14 created 1972, deleted 1976
2.5.1.37 created 1989, deleted 2004
2.5.1.40 created 1992, deleted 1999