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CATH Superfamily 3.30.70.20

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: waiting to be named.

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 39768: Quinol dehydrogenase periplasmic component

There are 3 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
Nitrate reductase. [EC: 1.7.99.4]
Nitrite + acceptor = nitrate + reduced acceptor.
  • The Pseudomonas enzyme is a cytochrome, but the enzyme from Micrococcus halodenitrificans is an iron protein containing molybdenum.
  • Reduced benzyl viologen and other dyes bring about the reduction of nitrate.
 15 A0A0A6ZPS8 A0A0A8GTF4 A0A0A8H4X7 A0A0A8H8X9 A0A0A8HDQ5 A0A0A8HJQ6 A0A0A8HVY6 A0A0A8I9E3 A0A0B6URA0 A0A0E1ZVQ4
(5 more...)
NADH dehydrogenase (quinone). [EC: 1.6.5.11]
NADH + a quinone = NAD(+) + a quinol.
  • Menaquinone or other quinones can act as acceptor.
  • Inhibited by AMP and 2,4-dinitrophenol but not by dicoumarol or folic acid derivatives.
  • Formerly EC 1.6.99.5.
 4 A0A161XJC6 A0A165QJP2 A0A1L9HQ22 A0A1L9KHD0
Photosystem I. [EC: 1.97.1.12]
Reduced plastocyanin + oxidized ferredoxin + light = oxidized plastocyanin + reduced ferredoxin.
  • Contains chlorophyll, phylloquinones, carotenoids and [4Fe-4S] clusters.
  • Cytochrome c6 can act as an alternative electron donor, and flavodoxin as an alternative acceptor in some species.
 2 A0A1A7UYW6 A0A1L9E7T5