Homologous Superfamily

Fumarate reductase/succinate dehydrogenase, transmembrane subunit (IPR034804)

Short name: SQR/QFR_C/D

Overlapping entries


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]. Succinate dehydrogenase (SQR) and fumarate reductase (QFR) share a common subunit arrangement, composed of a flavoprotein catalytic subunit (subunit A), an iron-sulfur protein (subunit B) and one or two hydrophobic transmembrane subunits (subunits C and D) [PMID: 10586875, PMID: 9210286].

This homologous superfamily includes the membrane components of both fumarate reductase and succinate dehydrogenase.

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

No terms assigned in this category.

Cellular Component

GO:0016020 membrane

Contributing signatures

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