Fumarate reductase respiratory complex, transmembrane subunit (IPR004224)

Short name: Fum_red_TM

Family relationships


Fumarate reductase couples the reduction of fumarate to succinate to the oxidation of quinol to quinone, in a reaction opposite to that catalysed by the related complex II of the respiratory chain (succinate dehydrogenase) [PMID: 10586875]. Three protein subunits contain the fumarate reductase complex. Subunit A contains the site of fumarate reduction and a covalently bound flavin adenine dinucleotide prosthetic group. Subunit B contains three iron-sulphur centres. The menaquinol-oxidizing subunit C (this family) consists of five membrane-spanning, primarily helical segments and binds two haem b molecules [PMID: 10586875].

GO terms

Biological Process

GO:0006099 tricarboxylic acid cycle

Molecular Function

No terms assigned in this category.

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.