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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 39316: Nitrate reductase, beta subunit

There are 5 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.
 3314 A0A010SIN8 A0A010SIN8 A0A017HEU2 A0A017HEU2 A0A017IFS8 A0A017IFS8 A0A017II56 A0A017II56 A0A023P4F1 A0A023P4F1
(3304 more...)
Mannose-1-phosphate guanylyltransferase. [EC: 2.7.7.13]
GTP + alpha-D-mannose 1-phosphate = diphosphate + GDP-mannose.
  • The bacterial enzyme can also use ITP and dGTP as donors.
 30 A0A0E1WWY9 A0A0E1WWY9 A0A0F6AVE5 A0A0F6AVE5 A0A0M1WIJ2 A0A0M1WIJ2 A0A1B3S2I3 A0A1B3S2I3 C0G9N5 C0G9N5
(20 more...)
Nitrate reductase (quinone). [EC: 1.7.5.1]
Nitrate + a quinol = nitrite + a quinone + H(2)O.
  • A membrane-bound enzyme which supports anaerobic respiration on nitrate under anaerobic conditions and in the presence of nitrate Escherichia coli expresses two forms NarA and NarZ, both being comprised of three subunits.
 14 A0A0K2YK28 A0A0K2YK28 A0A0K2YL06 A0A0K2YL06 A0A0S4MD18 A0A0S4MD18 A0A0U1MD10 A0A0U1MD10 A0A0U1MSV9 A0A0U1MSV9
(4 more...)
Selenate reductase. [EC: 1.97.1.9]
Selenite + H(2)O + acceptor = selenate + reduced acceptor.
  • The periplasmic enzyme from Thauera selenatis is a complex comprising three heterologous subunits (alpha, beta and gamma).
  • Nitrate, nitrite, chlorate and sulfate are not substrates.
  • A number of compounds, including acetate, lactate, pyruvate, and certain sugars, amino acids, fatty acids, di- and tricarboxylic acids, and benzoate can serve as electron donors.
 8 A0A078BKE1 A0A078BKE1 A0A160SI39 A0A160SI39 A0A170NS20 A0A170NS20 D6CLQ3 D6CLQ3
Ketol-acid reductoisomerase (NADP(+)). [EC: 1.1.1.86]
(1) (2R)-2,3-dihydroxy-3-methylbutanoate + NADP(+) = (2S)-2-hydroxy-2- methyl-3-oxobutanoate + NADPH. (2) (2R,3R)-2,3-dihydroxy-3-methylpentanoate + NADP(+) = (S)-2-hydroxy-2- ethyl-3-oxobutanoate + NADPH.
  • The enzyme, found in many bacteria and archaea, is specific for NADPH (cf. EC 1.1.1.382 and EC 1.1.1.383).
  • Formerly EC 1.1.1.89.
 4 A0A0F4XVD7 A0A0F4XVD7 G8PWP6 G8PWP6
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