UniProt ID: Q7ZVF3 |
FUNCTION: Flavoprotein (FP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q). {ECO:0000250|UniProtKB:P31040}. CATALYTIC ACTIVITY: Reaction=a quinone + succinate = a quinol + fumarate; Xref=Rhea:RHEA:40523, ChEBI:CHEBI:24646, ChEBI:CHEBI:29806, ChEBI:CHEBI:30031, ChEBI:CHEBI:132124; EC=1.3.5.1; Evidence={ECO:0000250|UniProtKB:P31040}; COFACTOR: Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250|UniProtKB:Q0QF01}; PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; fumarate from succinate (eukaryal route): step 1/1. {ECO:0000250|UniProtKB:P31040}. SUBUNIT: Component of complex II composed of four subunits: a flavoprotein (FP), an iron-sulfur protein (IP), and a cytochrome b composed of a large and a small subunit. {ECO:0000250|UniProtKB:Q0QF01}. SUBCELLULAR LOCATION: Mitochondrion inner membrane {ECO:0000250|UniProtKB:Q0QF01}; Peripheral membrane protein {ECO:0000250|UniProtKB:Q0QF01}; Matrix side {ECO:0000250|UniProtKB:Q0QF01}. SIMILARITY: Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily. {ECO:0000305}. |
UniProt ID: B2GQ13 |
FUNCTION: Flavoprotein (FP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q). {ECO:0000256|RuleBase:RU362051}. CATALYTIC ACTIVITY: Reaction=a quinone + succinate = a quinol + fumarate; Xref=Rhea:RHEA:40523, ChEBI:CHEBI:24646, ChEBI:CHEBI:29806, ChEBI:CHEBI:30031, ChEBI:CHEBI:132124; EC=1.3.5.1; Evidence={ECO:0000256|ARBA:ARBA00000030, ECO:0000256|RuleBase:RU362051}; COFACTOR: Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000256|ARBA:ARBA00001974, ECO:0000256|RuleBase:RU362051}; PATHWAY: Carbohydrate metabolism; tricarboxylic acid cycle; fumarate from succinate (eukaryal route): step 1/1. {ECO:0000256|ARBA:ARBA00004788, ECO:0000256|RuleBase:RU362051}. SUBCELLULAR LOCATION: Mitochondrion inner membrane {ECO:0000256|ARBA:ARBA00004443, ECO:0000256|RuleBase:RU362051}; Peripheral membrane protein {ECO:0000256|ARBA:ARBA00004443, ECO:0000256|RuleBase:RU362051}; Matrix side {ECO:0000256|ARBA:ARBA00004443, ECO:0000256|RuleBase:RU362051}. SIMILARITY: Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily. {ECO:0000256|ARBA:ARBA00008040, ECO:0000256|RuleBase:RU362051}. |
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