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CATH Superfamily 2.30.110.10

Electron Transport, Fmn-binding Protein; Chain A

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:

"
Electron Transport, Fmn-binding Protein; Chain A
".

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 14404: FMN reductase (NADH) NtaB

There are 2 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
Flavin reductase (NADH). [EC: 1.5.1.36]
Reduced flavin + NAD(+) = flavin + NADH.
  • The enzyme from Escherichia coli W catalyzes the reduction of free flavins by NADH.
  • The enzyme has similar affinity to FAD, FMN and riboflavin.
  • Activity with NADPH is more than 2 orders of magnitude lower than activity with NADH.
 5 A0A009S7E9 A0A062DFS5 A0A062F3H4 L9P0Y6 Q6Q271
FMN reductase (NADH). [EC: 1.5.1.42]
FMNH(2) + NAD(+) = FMN + NADH.
  • The enzyme often forms a two-component system with monooxygenases.
  • Unlike EC 1.5.1.38 and EC 1.5.1.39, this enzyme has a strong preference for NADH over NADPH, although some activity with the latter is observed.
  • While FMN is the preferred substrate, FAD can also be used with much lower activity.
 2 A0A142MF17 P54990