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CATH Superfamily 2.60.200.20

The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_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 48: Zeaxanthin epoxidase, chloroplastic

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
Zeaxanthin epoxidase. [EC: 1.14.15.21]
Zeaxanthin + 4 reduced ferredoxin [iron-sulfur] cluster + 4 H(+) + 2 O(2) = violaxanthin + 4 oxidized ferredoxin [iron-sulfur] cluster + 2 H(2)O.
  • Active under conditions of low light.
  • Along with EC 1.23.5.1, this enzyme forms part of the xanthophyll (or violaxanthin) cycle, which is involved in protecting the plant against damage by excess light.
  • It will also epoxidize lutein in some higher-plant species.
  • Formerly EC 1.14.13.90.
 2 Q0JCU7 Q9FGC7