KEGG Orthology (KO) [BR:ko00001]
09100 Metabolism
09108 Metabolism of cofactors and vitamins
00860 Porphyrin metabolism
K11337 bchC; bacteriochlorophyllide a dehydrogenase
Enzymes [BR:ko01000]
1. Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.1.1 With NAD+ or NADP+ as acceptor
1.1.1.396 bacteriochlorophyllide a dehydrogenase
K11337 bchC; bacteriochlorophyllide a dehydrogenase
3-deacetyl-3-(1-hydroxyethyl)bacteriochlorophyllide a [CPD:C18153];
NAD+ [CPD:C00003];
3-devinyl-3-(1-hydroxyethyl)chlorophyllide a [CPD:C18154]
Product
bacteriochlorophyllide a [CPD:C18155];
NADH [CPD:C00004];
H+ [CPD:C00080];
3-acetyl-3-devinylchlorophyllide a
Comment
The enzyme, together with EC 1.3.7.15, chlorophyllide-a reductase, and EC 4.2.1.165, chlorophyllide-a 31-hydratase, is involved in the conversion of chlorophyllide a to bacteriochlorophyllide a. The enzymes can act in multiple orders, resulting in the formation of different intermediates, but the final product of the cumulative action of the three enzymes is always bacteriochlorophyllide a. The enzyme oxidizes a hydroxyl group on ring A, converting it to an oxo group.
Broadened Substrate Specificity of 3-Hydroxyethyl Bacteriochlorophyllide a Dehydrogenase (BchC) Indicates a New Route for the Biosynthesis of Bacteriochlorophyll a.