ID   1.7.2.2
DE   Nitrite reductase (cytochrome; ammonia-forming).
AN   Cytochrome c nitrite reductase.
AN   Cytochrome c552.
AN   Multiheme nitrite reductase.
CA   NH(3) + 2 H(2)O + 6 ferricytochrome c = nitrite + 6 ferrocytochrome c +
CA   7 H(+).
CF   Calcium; Heme.
CC   -!- The enzyme also reduces nitric oxide and hydroxylamine to ammonia,
CC       and sulfite to sulfide.
DR   A8ERP8, NRFA_ARCB4 ;  Q5LI95, NRFA_BACFN ;  Q64ZA7, NRFA_BACFR ;
DR   Q8A7V7, NRFA_BACTN ;  A8AN26, NRFA_CITK8 ;  Q6ARF1, NRFA_DESPS ;
DR   A7ZUU5, NRFA_ECO24 ;  P0ABL0, NRFA_ECO57 ;  A8A7H1, NRFA_ECOHS ;
DR   A1AIR1, NRFA_ECOK1 ;  Q0T9X8, NRFA_ECOL5 ;  Q8CVI1, NRFA_ECOL6 ;
DR   B1IUI1, NRFA_ECOLC ;  P0ABK9, NRFA_ECOLI ;  Q1R3J6, NRFA_ECOUT ;
DR   Q6D613, NRFA_ERWCT ;  Q7VNX8, NRFA_HAEDU ;  Q4QLL8, NRFA_HAEI8 ;
DR   P45017, NRFA_HAEIN ;  Q65RI4, NRFA_MANSM ;  A6L890, NRFA_PARD8 ;
DR   Q06PW6, NRFA_PASHA ;  Q9CPL4, NRFA_PASMU ;  Q6LSQ7, NRFA_PHOPR ;
DR   Q7MTW1, NRFA_PORGI ;  A9MGK5, NRFA_SALAR ;  Q57GV0, NRFA_SALCH ;
DR   Q5PJ02, NRFA_SALPA ;  A9N1R7, NRFA_SALPB ;  Q8Z1Q9, NRFA_SALTI ;
DR   Q8ZKF5, NRFA_SALTY ;  Q087T3, NRFA_SHEFN ;  Q8EAC7, NRFA_SHEON ;
DR   Q0HMH8, NRFA_SHESM ;  Q0HRB0, NRFA_SHESR ;  Q31TS5, NRFA_SHIBS ;
DR   Q83P93, NRFA_SHIFL ;  Q3YUR5, NRFA_SHISS ;  Q9Z4P4, NRFA_SULDE ;
DR   Q5E4J7, NRFA_VIBF1 ;  Q87ND9, NRFA_VIBPA ;  Q8D8E5, NRFA_VIBVU ;
DR   Q7MM23, NRFA_VIBVY ;  Q9S1E5, NRFA_WOLSU ;
//