Entry
Name
3,8-divinyl protochlorophyllide a 8-vinyl-reductase (ferredoxin);
bciB (gene name);
cyano-type divinyl chlorophyllide a 8-vinyl-reductase
Class
Oxidoreductases;
Acting on the CH-CH group of donors;
With an iron-sulfur protein as acceptor
BRITE hierarchy
Sysname
protochlorophyllide-a:ferredoxin C-81-oxidoreductase
Reaction(IUBMB)
protochlorophyllide a + 2 oxidized ferredoxin [iron-sulfur] cluster = 3,8-divinyl protochlorophyllide a + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+ [RN:
R11519 ]
Reaction(KEGG)
Substrate
protochlorophyllide a [CPD:
C02880 ];
oxidized ferredoxin [iron-sulfur] cluster [CPD:
C00139 ]
Product
3,8-divinyl protochlorophyllide a [CPD:
C11831 ];
reduced ferredoxin [iron-sulfur] cluster [CPD:
C00138 ];
H+ [CPD:
C00080 ]
Comment
The enzyme, found in many phototrophic bacteria, land plants, and some green and red algae, is involved in the production of monovinyl versions of (bacterio)chlorophyll pigments from their divinyl precursors. Binds two [4Fe-4S] clusters and an FAD cofactor. It can also act on 3,8-divinyl chlorophyllide a, 3,8-divinyl chlorophyll a, and chlorophyll c2. cf. EC
1.3.1.75 , 3,8-divinyl protochlorophyllide a 8-vinyl-reductase (NADPH).
History
EC 1.3.7.13 created 2016
Pathway
Orthology
K21231 3,8-divinyl protochlorophyllide a 8-vinyl-reductase (ferredoxin)
Genes
CPH : Cpha266_0188 Cpha266_0696
SYY : SYNGTS_2003(slr1923)
SYT : SYNGTI_2002(slr1923)
SYS : SYNPCCN_2001(slr1923)
SYQ : SYNPCCP_2001(slr1923)
SYR : SynRCC307_0774(frhB)
SYX : SynWH7803_1550(frhB)
SYP : SYNPCC7002_A2638(fruB)
SYNN : NIES970_06210(fruB)
GLJ : GKIL_2429(frhB) GKIL_4087(frhB)
GML : ISF26_18540 ISF26_22815
» show all
Taxonomy
Reference
Authors
Chew AG, Bryant DA
Title
Characterization of a plant-like protochlorophyllide a divinyl reductase in green sulfur bacteria.
Journal
Reference
Authors
Saunders AH, Golbeck JH, Bryant DA
Title
Characterization of BciB: a ferredoxin-dependent 8-vinyl-protochlorophyllide reductase from the green sulfur bacterium Chloroherpeton thalassium.
Journal
Sequence
Reference
Authors
Ito H, Tanaka A
Title
Evolution of a new chlorophyll metabolic pathway driven by the dynamic changes in enzyme promiscuous activity.
Journal
Sequence
Other DBs
ExplorEnz - The Enzyme Database: 1.3.7.13
ExPASy - ENZYME nomenclature database: 1.3.7.13