frdB - Escherichia coli K-12
Fumarate reductase iron-sulfur subunit
> frdB - Escherichia coli K-12 [Fumarate reductase iron-sulfur subunit]
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Metadata
Organism Source: 83333 - Escherichia coli K-12
EC Number: 1.3.5.1
Cluster:
Registry Model:
Reactions
| reaction id | name | note |
|---|---|---|
| KEGG:R02164 | succinate:quinone oxidoreductase | electron transport complex II |
| KEGG:R13223 | succinate:ubiquinone oxidoreductase | Ubiquinone + Succinate <=> Ubiquinol + Fumarate |
| BioCyc:R601-RXN | Menaquinols + FUM<=>Menaquinones + SUC | |
| BioCyc:SUCCINATE-DEHYDROGENASE-UBIQUINONE-RXN | Ubiquinones + SUC --> Ubiquinols + FUM | |
| Rhea:RHEA:13714 | a ubiquinone + succinate => a ubiquinol + fumarate | |
| Rhea:RHEA:13715 | a ubiquinol + fumarate => a ubiquinone + succinate | |
| Rhea:RHEA:13716 | a ubiquinone + succinate <=> a ubiquinol + fumarate | |
| Rhea:RHEA:27835 | a menaquinone + succinate => a menaquinol + fumarate | |
| Rhea:RHEA:27836 | a menaquinol + fumarate => a menaquinone + succinate | |
| Rhea:RHEA:27837 | a menaquinone + succinate <=> a menaquinol + fumarate | |
| Rhea:RHEA:40524 | a quinone + succinate => fumarate + a quinol | |
| Rhea:RHEA:40525 | fumarate + a quinol => a quinone + succinate | |
| Rhea:RHEA:40526 | a quinone + succinate <=> fumarate + a quinol | |
| Rhea:RHEA:75712 | a rhodoquinone + succinate => a rhodoquinol + fumarate | |
| Rhea:RHEA:75713 | a rhodoquinol + fumarate => a rhodoquinone + succinate | |
| Rhea:RHEA:75714 | a rhodoquinone + succinate <=> a rhodoquinol + fumarate | |
| BioCyc:RXN1YI0-14 | SUC + PLASTOQUINONE --> FUM + Plastoquinols | |
| BioCyc:SUCCINATE-DEHYDROGENASE-UBIQUINONE6-RXN | UBIQUINONE-6 + SUC --> UBIQUINOL-30 + FUM | |
| BioCyc:RXN-15378 | CPD-9612 + SUC --> CPD-15301 + FUM | |
| BioCyc:RXN-21393 | CPD-9720 + SUC --> CPD-12126 + FUM | |
| BioCyc:RXN-21394 | CPD-9720 + 2 PROTON + SUC --> CPD-12126 + FUM + 2 PROTON | Menaquinone is a poor electron acceptor from succinate and this reaction is energetically unfavourable. Succinate:menaquinone oxidoreductase activity is specifically inhibited by agents which dissipate the membrane potential implicating the proton gradient as a driving force. In this model the protons for menaquinone reduction are taken up from the periplasm, the protons liberated upon succinate oxidation are released to the cytoplasm and both reactions are linked by the transfer of electrons through the enzyme |CITS: [9799121]| (see also |CITS: [17154542]|) |
| BioCyc:RXN-14971 | ETR-Quinones + SUC<=>ETR-Quinols + FUM |
Pathways
| pathway id | name |
|---|---|
| BioCyc:META_PWY0-1582 | glycerol-3-phosphate to fumarate electron transfer |
| BioCyc:ECO_PWY0-1336 | NADH to fumarate electron transfer |
| BioCyc:ECOL316407_PWY0-1336 | NADH to fumarate electron transfer |
| BioCyc:META_PWY0-1576 | hydrogen to fumarate electron transfer |
| BioCyc:ECO_PWY0-1576 | hydrogen to fumarate electron transfer |
| BioCyc:ECOL316407_ANARESP1-PWY | respiration (anaerobic) |
| BioCyc:META_PWY0-1336 | NADH to fumarate electron transfer |
| BioCyc:ECOL316407_FERMENTATION-PWY | mixed acid fermentation |
| BioCyc:META_FERMENTATION-PWY | mixed acid fermentation |
| BioCyc:ECO_FERMENTATION-PWY | mixed acid fermentation |
| BioCyc:ECO_PWY0-1582 | glycerol-3-phosphate to fumarate electron transfer |
| WikiPathways:WP2472 | Escherichia coli K-12 peripherome |
| PathBank:SMP0000808 | Inner Membrane Transport |