CATH Classification

Domain Context

CATH Clusters

Superfamily Cupredoxins - blue copper proteins
Functional Family

Enzyme Information
Nitrite reductase (NO-forming).
based on mapping to UniProt P38501
Nitric oxide + H(2)O + ferricytochrome c = nitrite + ferrocytochrome c + 2 H(+).
-!- The reaction is catalyzed by two types of enzymes, found in the perimplasm of denitrifying bacteria. -!- One type comprises proteins containing multiple copper centers, the other a heme protein, cytochrome cd1. -!- Acceptors include c-type cytochromes such as cytochrome c-550 or cytochrome c-551 from Paracoccus denitrificans or Pseudomonas aeruginosa, and small blue copper proteins such as azurin and pseudoazurin. -!- Cytochrome cd1 also has oxidase and hydroxylamine reductase activities. -!- May also catalyze the reaction of EC since this is a well- known activity of cytochrome cd1. -!- Formerly EC, EC and EC

UniProtKB Entries (1)

Alcaligenes faecalis
Copper-containing nitrite reductase

PDB Structure

External Links
Primary Citation
Directed evolution of copper nitrite reductase to a chromogenic reductant.
Macpherson, I.S., Rosell, F.I., Scofield, M., Mauk, A.G., Murphy, M.E.
Protein Eng.Des.Sel.