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CATH Superfamily 2.102.10.10

Rieske [2Fe-2S] iron-sulphur domain

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:

"
Rieske [2Fe-2S] iron-sulphur domain
".

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 8184: Cytochrome b6-f complex iron-sulfur subunit

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
Plastoquinol--plastocyanin reductase. [EC: 1.10.9.1]
Plastoquinol + 2 oxidized plastocyanin + 2 H(+)(Side 1) = plastoquinone + 2 reduced plastocyanin + 4 H(+)(Side 2).
  • Contains two b-type cytochromes, two c-type cytochromes (cn and f), and a [2Fe-2S] Rieske cluster.
  • The enzyme plays a key role in photosynthesis, transferring electrons from photosystem II (EC 1.10.3.9) to photosystem I (EC 1.97.1.12).
  • Cytochrome c-552 can act as acceptor instead of plastocyanin, but more slowly.
  • In chloroplasts, protons are translocated through the thylakoid membrane from the lumen to the stroma.
  • The mechanism occurs through the Q cycle as in EC 1.10.2.2 (complex III) and involves electron bifurcation.
  • Formerly EC 1.10.99.1.
 448 A0A022QB44 A0A024CAR3 A0A024CBE9 A0A024CBF2 A0A024CBF6 A0A024CCM4 A0A059BM21 A0A059BME1 A0A059BMK7 A0A059DG05
(438 more...)