ENTRY       EC 1.7.99.3
NAME        Nitrite reductase
CLASS       Oxidoreductases
            Acting on other nitrogenous compounds as donors
            With other acceptors
SYSNAME     Nitric-oxide:(acceptor) oxidoreductase
REACTION    2 Nitric oxide + 2 H2O + Acceptor = 2 Nitrite + Reduced acceptor
SUBSTRATE   Nitric oxide
            H2O
            Acceptor
PRODUCT     Nitrite
            Reduced acceptor
            Pyocyanine
            Flavin
COFACTOR    Copper
            FAD
COMMENT     A copper protein; the Pseudomonas enzyme also contains FAD.
            Reduced pyocyanine, flavins, etc. act as donor for the reduction
            of nitrite. Formerly EC 1.6.6.5.
PATHWAY     PATH: MAP00910  Nitrogen metabolism
STRUCTURES  PDB: 1NIA  2AFN  1NTD  1NDS  2NRD  1NIF  1NIE  1NID  1NIC  1NIB  
                 1NDR  
DBLINKS     University of Geneva ENZYME DATA BANK: 1.7.99.3
            WIT (What Is There) Metabolic Reconstruction: 1.7.99.3
            SCOP (Structural Classificaion of Proteins): 1.7.99.3
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