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CATH Superfamily 1.20.810.10

Cytochrome Bc1 Complex; Chain C

The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
Cytochrome Bc1 Complex; Chain C
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 1119: Cytochrome b

There are 1 EC terms in this cluster

Please note: EC annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

Note: The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.

EC Term Annotations Evidence
Quinol--cytochrome-c reductase. [EC: 1.10.2.2]
Quinol + 2 ferricytochrome c = quinone + 2 ferrocytochrome c + 2 H(+).
  • The enzyme, often referred to as the cytochrome bc1 complex or complex III, is the third complex in the electron transport chain.
  • It is present in the mitochondria of all aerobic eukaryotes and in the inner membranes of most bacteria.
  • The mammalian enzyme contains cytochromes b-562, b-566 and C(1), and a 2-iron ferredoxin.
  • Depending on the organism and physiological conditions, the enzyme extrudes either two or four protons from the cytoplasmic to the non- cytoplasmic compartment (cf. EC 1.6.99.3).
 26 A0A023ND51 A0A023NDN5 A0A023UJT4 A0A023UKD0 A0A023ULN7 A0A1L4BI22 A0A1L4BI23 A0A1L4BI29 A0A1L4BI31 A0A1L4BI32
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