Accepted name: L-tyrosine reductase
Reaction: L-tyrosinal + NADP+ + AMP + diphosphate = L-tyrosine + NADPH + H+ + ATP
Glossary: L-tyrosinal = (2S)-2-amino-3-(4-hydroxyphenyl)propanal
Other name(s): lnaA (gene name); lnbA (gene name)
Systematic name: (2S)-2-amino-3-(4-hydroxyphenyl)propanal:NADP+ oxidoreductase (ATP-forming)
Comments: The enzyme, characterized from the ascomycete fungus Aspergillus flavus, is specific for L-tyrosine. It contains three domains - an adenylation domain, a peptidyl-carrier protein (PCP) 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 PCP domain. The resulting thioester is subsequently transferred to the reductase domain, where it is reduced to the aldehyde.
1.  Forseth, R.R., Amaike, S., Schwenk, D., Affeldt, K.J., Hoffmeister, D., Schroeder, F.C. and Keller, N.P. Homologous NRPS-like gene clusters mediate redundant small-molecule biosynthesis in Aspergillus flavus. Angew. Chem. Int. Ed. Engl. 52 (2013) 1590–1594. [PMID: 23281040]
[EC created 2018]