CATH Classification

Domain Context

CATH Clusters

Superfamily Flavocytochrome C3; Chain A
Functional Family Cytochrome c-552

Enzyme Information

1.7.2.2
Nitrite reductase (cytochrome; ammonia-forming).
based on mapping to UniProt P0ABK9
NH(3) + 2 H(2)O + 6 ferricytochrome c = nitrite + 6 ferrocytochrome c + 7 H(+).
-!- The enzyme also reduces nitric oxide and hydroxylamine to ammonia, and sulfite to sulfide.

UniProtKB Entries (1)

P0ABK9
NRFA_ECOLI
Escherichia coli K-12
Cytochrome c-552

PDB Structure

PDB 3L1T
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Kinetic and thermodynamic resolution of the interactions between sulfite and the pentahaem cytochrome NrfA from Escherichia coli
Kemp, G.L., Clarke, T.A., Marritt, S.J., Lockwood, C., Poock, S.R., Hemmings, A.M., Richardson, D.J., Cheesman, M.R., Butt, J.N.
Biochem.J.
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