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Crystal structure of a dodecameric multicopper oxidase from M. hydrothermalis in a cubic lattice

Source organism: Marinithermus hydrothermalis
Biochemical function: nitrite reductase (NO-forming) activity
Biological process: not assigned
Cellular component: not assigned

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EC 1.7.2.1: Nitrite reductase (NO-forming)

Reaction catalysed:
Nitric oxide + H(2)O + ferricytochrome c = nitrite + ferrocytochrome c + 2 H(+)
Systematic name:
Nitric-oxide:ferricytochrome-c oxidoreductase
Alternative Name(s):
  • (Nitrite reductase (cytochrome))
  • Cytochrome c-551:O(2), NO(2)(+) oxidoreductase
  • Cytochrome cd
  • Cytochrome cd1
  • Hydroxylamine (acceptor) reductase
  • Methyl viologen-nitrite reductase
  • Nitrite reductase
  • Nitrite reductase (cytochrome)
  • Nitrite reductase (cytochrome; NO-forming)
  • Pseudomonas cytochrome oxidase
  • cd-cytochrome nitrite reductase

GO terms

Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Sequence families

Pfam Protein families (Pfam)
PF07731
Domain description: Multicopper oxidase
Occurring in:
  1. Copper-containing nitrite reductase
The deposited structure of PDB entry 7rab contains 8 copies of Pfam domain PF07731 (Multicopper oxidase) in Copper-containing nitrite reductase. Showing 1 copy in chain A.

PF07732
Domain description: Multicopper oxidase
Occurring in:
  1. Copper-containing nitrite reductase
The deposited structure of PDB entry 7rab contains 8 copies of Pfam domain PF07732 (Multicopper oxidase) in Copper-containing nitrite reductase. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR008972
Domain description: Cupredoxin
Occurring in:
  1. Copper-containing nitrite reductase
IPR001287
Domain description: Nitrite reductase, copper-type
Occurring in:
  1. Copper-containing nitrite reductase
IPR011706
Domain description: Multicopper oxidase, C-terminal
Occurring in:
  1. Copper-containing nitrite reductase
IPR045087
Domain description: Multicopper oxidase
Occurring in:
  1. Copper-containing nitrite reductase
IPR011707
Domain description: Multicopper oxidase-like, N-terminal
Occurring in:
  1. Copper-containing nitrite reductase

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