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CATH Superfamily 3.90.180.10

Medium-chain alcohol dehydrogenases, catalytic domain

The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was named:

"
Medium-chain alcohol dehydrogenases, catalytic 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 5: Quinone oxidoreductase 1

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
NADPH:quinone reductase. [EC: 1.6.5.5]
NADPH + 2 quinone = NADP(+) + 2 semiquinone.
  • Specific for NADPH.
  • Catalyzes the one-electron reduction of certain quinones, with the orthoquinones 1,2-naphthoquinone and 9,10-phenanthrenequinone being the best substrates.
  • Dicoumarol (cf. EC 1.6.5.2) and nitrofurantoin are competitive inhibitors with respect to the quinone substrate.
  • The semiquinone free-radical product may be non-enzymically reduced to the hydroquinone or oxidized back to quinone in the presence of O(2).
  • Abundant in the lens of the eye of some mammalian species.
 234 A0A069XP13 A0A069XP13 A0A069XP13 A0A069XP13 A0A069XP13 A0A069XP13 A0A069XP13 A0A069XP13 A0A070SJP3 A0A070SJP3
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