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Assimilatory nitrite reductase (Nii3) - N226K mutant - NO2 complex from tobacco leaf

Source organism: Nicotiana tabacum
Biochemical function: 4 iron, 4 sulfur cluster binding
Biological process: nitrate assimilation
Cellular component: not assigned

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EC 1.7.7.1: Ferredoxin--nitrite reductase

Reaction catalysed:
NH(3) + 2 H(2)O + 6 oxidized ferredoxin = nitrite + 6 reduced ferredoxin + 7 H(+)
Systematic name:
Ammonia:ferredoxin oxidoreductase

GO terms

Sequence families

Pfam Protein families (Pfam)
PF01077
Domain description: Nitrite and sulphite reductase 4Fe-4S domain
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
The deposited structure of PDB entry 3vm0 contains 2 copies of Pfam domain PF01077 (Nitrite and sulphite reductase 4Fe-4S domain) in Nitrite reductase. Showing 2 copies in chain A.

PF03460
Domain description: Nitrite/Sulfite reductase ferredoxin-like half domain
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
The deposited structure of PDB entry 3vm0 contains 2 copies of Pfam domain PF03460 (Nitrite/Sulfite reductase ferredoxin-like half domain) in Nitrite reductase. Showing 2 copies in chain A.

InterPro InterPro annotations
IPR045854
Domain description: Nitrite and sulphite reductase 4Fe-4S domain-like superfamily
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
IPR006066
Domain description: Nitrite/sulphite reductase iron-sulphur/sirohaem-binding site
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
IPR006067
Domain description: Nitrite/sulphite reductase 4Fe-4S domain
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
IPR005117
Domain description: Nitrite/Sulfite reductase ferredoxin-like domain
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
IPR036136
Domain description: Nitrite/Sulfite reductase ferredoxin-like domain superfamily
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
IPR038685
Domain description: PAD, N-terminal domain superfamily
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic

Structure domains

CATH CATH domains
3.30.413.10
Class: Alpha Beta
Architecture: 2-Layer Sandwich
Topology: Sulfite Reductase Hemoprotein; domain 1
Homology: Sulfite Reductase Hemoprotein, domain 1
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
The deposited structure of PDB entry 3vm0 contains 2 copies of CATH domain 3.30.413.10 (Sulfite Reductase Hemoprotein; domain 1) in Nitrite reductase. Showing 2 copies in chain A.
3.90.480.20
Class: Alpha Beta
Architecture: Alpha-Beta Complex
Topology: Sulfite Reductase Hemoprotein; domain 2
Homology: Sulfite Reductase Hemoprotein; domain 2
Occurring in:
  1. Ferredoxin--nitrite reductase, chloroplastic
The deposited structure of PDB entry 3vm0 contains 1 copy of CATH domain 3.90.480.20 (Sulfite Reductase Hemoprotein; domain 2) in Nitrite reductase. Showing 1 copy in chain A.

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