UniProt functional annotation for P38501

UniProt code: P38501.

Organism: Alcaligenes faecalis.
Taxonomy: Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales; Alcaligenaceae; Alcaligenes.
 
Catalytic activity: Reaction=[Fe(III)cytochrome c] + H2O + nitric oxide = [Fe(II)cytochrome c] + 2 H(+) + nitrite; Xref=Rhea:RHEA:15233, Rhea:RHEA-COMP:10350, Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:16301, ChEBI:CHEBI:16480, ChEBI:CHEBI:29033, ChEBI:CHEBI:29034; EC=1.7.2.1;
Cofactor: Name=Cu(2+); Xref=ChEBI:CHEBI:29036; Evidence={ECO:0000250}; Note=Binds 1 Cu(2+) ion. The Cu(2+) ion is held by residues from each of 2 monomers of the trimer. Nitrite is bound to the Cu(2+) ion site. Pseudoazurin is the physiological electron donor for the Cu-NIR in vitro. {ECO:0000250};
Cofactor: Name=Cu(+); Xref=ChEBI:CHEBI:49552; Evidence={ECO:0000250}; Note=Binds 1 Cu(+) ion. The Cu(+) ion is bound within a single monomer. {ECO:0000250};
Cofactor: Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250};
Pathway: Nitrogen metabolism; nitrate reduction (denitrification); dinitrogen from nitrate: step 2/4.
Subunit: Homotrimer.
Subcellular location: Periplasm.
Induction: Under anaerobic growth conditions and by nitrite.
Domain: The type I copper site in NIR plays a crucial role for electron transfer from pseudoazurin to the type II copper site of NIR, which comprises the catalytic center of NIR for the reduction of nitrite.
Ptm: Predicted to be exported by the Tat system. The position of the signal peptide cleavage has been experimentally proven.
Similarity: Belongs to the multicopper oxidase family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.