The Enzyme Database

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Accepted name: 2-alkenal reductase [NAD(P)+]
Reaction: a n-alkanal + NAD(P)+ = an alk-2-enal + NAD(P)H + H+
Other name(s): NAD(P)H-dependent alkenal/one oxidoreductase; NADPH:2-alkenal α,β-hydrogenase; 2-alkenal reductase
Systematic name: n-alkanal:NAD(P)+ 2-oxidoreductase
Comments: Highly specific for 4-hydroxynon-2-enal and non-2-enal. Alk-2-enals of shorter chain have lower affinities. Exhibits high activities also for alk-2-enones such as but-3-en-2-one and pent-3-en-2-one. Inactive with cyclohex-2-en-1-one and 12-oxophytodienoic acid. Involved in the detoxication of α,β-unsaturated aldehydes and ketones [cf. EC, 2-alkenal reductase (NADP+)].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 52227-95-9
1.  Mano, J., Torii, Y., Hayashi, S., Takimoto, K., Matsui, K., Nakamura, K., Inzé, D., Babiychuk, E., Kushnir, S. and Asada, K. The NADPH:quinone oxidoreductase P1-ζ-crystallin in Arabidopsis catalyzes the α,β-hydrogenation of 2-alkenals: detoxication of the lipid peroxide-derived reactive aldehydes. Plant Cell Physiol. 43 (2002) 1445–1455. [PMID: 12514241]
2.  Dick, R.A., Kwak, M.K., Sutter, T.R. and Kensler, T.W. Antioxidative function and substrate specificity of NAD(P)H-dependent alkenal/one oxidoreductase. A new role for leukotriene B4 12-hydroxydehydrogenase/15-oxoprostaglandin 13-reductase. J. Biol. Chem. 276 (2001) 40803–40810. [PMID: 11524419]
[EC created 2003, modified 2014]

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