Succinate dehydrogenase, cytochrome b556 subunit (IPR014314)

Short name: Succ_DH_cytb556

Overlapping homologous superfamilies

Family relationships


In Escherichia coli and many other bacteria, two small, hydrophobic, mutually homologous subunits of succinate dehydrogenase (a TCA cycle enzyme) are SdhC and SdhD. This entry represents SdhC, the cytochrome b subunit, called b556 in bacteria and b560 in mitochondria. SdhD (see IPR014312) is called the hydrophobic membrane anchor subunit, although both SdhC and SdhD participate in anchoring the complex. In some bacteria, this cytochrome b subunit is replaced my a member of the cytochrome b558 family (see IPR011138).

GO terms

Biological Process

GO:0006099 tricarboxylic acid cycle

Molecular Function

GO:0000104 succinate dehydrogenase activity

Cellular Component

GO:0045281 succinate dehydrogenase complex

Contributing signatures

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