Reaction: an aromatic aldehyde + NADP+ + AMP + diphosphate = an aromatic acid + NADPH + H+ + ATP
Other name(s): aromatic acid reductase; aryl-aldehyde dehydrogenase (NADP+)
Systematic name: aryl-aldehyde:NADP+ oxidoreductase (ATP-forming)
Comments: The enzyme contains an adenylation domain, a phosphopantetheinyl binding domain, and a reductase domain, and requires activation by attachment of a phosphopantetheinyl group. The enzyme activates its substrate to an adenylate form, followed by a transfer to the phosphopantetheinyl binding domain. The resulting thioester is subsequently transferred to the reductase domain, where it is reduced to an aldehyde and released.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 9074-94-6
References:
1. Gross, G.G. and Zenk, M.H. Reduktion aromatischer Säuer zu Aldehyden und Alkoholen im zellfreien System. 1. Reinigung und Eigenschaften von Aryl-Aldehyd:NADP-Oxidoreduktase aus Neurospora crassa. Eur. J. Biochem. 8 (1969) 413-419. [PMID: 4389863]
2. Gross, G.G. Formation and reduction of intermediate acyladenylate by aryl-aldehyde. NADP oxidoreductase from Neurospora crassa. Eur. J. Biochem. 31 (1972) 585-592. [PMID: 4405494]
3. Venkitasubramanian, P., Daniels, L. and Rosazza, J.P. Reduction of carboxylic acids by Nocardia aldehyde oxidoreductase requires a phosphopantetheinylated enzyme. J. Biol. Chem 282 (2007) 478-485. [PMID: 17102130]
4. Stolterfoht, H., Schwendenwein, D., Sensen, C.W., Rudroff, F. and Winkler, M. Four distinct types of E.C. 1.2.1.30 enzymes can catalyze the reduction of carboxylic acids to aldehydes. J. Biotechnol. 257 (2017) 222-232. [PMID: 28223183]