Accepted name: 4,4′-diapolycopenoate synthase
Reaction: (1) 4,4′-diapolycopen-4-al + H2O + acceptor = 4,4′-diapolycopen-4-oate + reduced acceptor
(2) 4,4′-diapolycopene-4,4′-dial + 2 H2O + 2 acceptor = 4,4′-diapolycopene-4,4′-dioate + 2 reduced acceptor
Other name(s): crtNc; 4,4′-diapolycopenealdehyde oxidase (misleading)
Systematic name: 4,4′-diapolycopen-4-al,donor:oxygen oxidoreductase (4,4′-diapolycopen-4-oate-forming)
Comments: The enzyme has been described from the bacteria Methylomonas sp. 16a and Bacillus indicus.
1.  Tao, L., Schenzle, A., Odom, J.M. and Cheng, Q. Novel carotenoid oxidase involved in biosynthesis of 4,4′-diapolycopene dialdehyde. Appl. Environ. Microbiol. 71 (2005) 3294–3301. [PMID: 15933032]
2.  Steiger, S., Perez-Fons, L., Cutting, S.M., Fraser, P.D. and Sandmann, G. Annotation and functional assignment of the genes for the C30 carotenoid pathways from the genomes of two bacteria: Bacillus indicus and Bacillus firmus. Microbiology 161 (2015) 194–202. [PMID: 25326460]
[EC created 2017]