ID   1.6.2.2
DE   Cytochrome-b5 reductase.
CA   NADH + 2 ferricytochrome b5 = NAD(+) + H(+) + 2 ferrocytochrome b5.
CF   FAD.
DR   A7THS1, MCR1A_VANPO;  A7TM72, MCR1B_VANPO;  A6R1T7, MCR1_AJECN ;
DR   Q75C62, MCR1_ASHGO ;  A1CRK9, MCR1_ASPCL ;  Q4WJW8, MCR1_ASPFU ;
DR   A2Q898, MCR1_ASPNC ;  Q2UKB8, MCR1_ASPOR ;  Q0CRD8, MCR1_ASPTN ;
DR   A6SI59, MCR1_BOTFB ;  Q59M70, MCR1_CANAL ;  Q6FUX5, MCR1_CANGA ;
DR   Q2HG02, MCR1_CHAGB ;  Q1DXN1, MCR1_COCIM ;  Q6BQ54, MCR1_DEBHA ;
DR   Q5BG98, MCR1_EMENI ;  Q6CS27, MCR1_KLULA ;  A5E5C5, MCR1_LODEL ;
DR   A4QR21, MCR1_MAGO7 ;  A1D4H0, MCR1_NEOFI ;  Q7SFY2, MCR1_NEUCR ;
DR   Q0U9W5, MCR1_PHANO ;  A5DQE4, MCR1_PICGU ;  A3LT66, MCR1_PICST ;
DR   A7EKT5, MCR1_SCLS1 ;  Q4P7Y8, MCR1_USTMA ;  Q6C9G8, MCR1_YARLI ;
DR   A6ZZH2, MCR1_YEAS7 ;  P36060, MCR1_YEAST ;  Q3MHW9, NB5R1_BOVIN;
DR   Q9UHQ9, NB5R1_HUMAN;  Q9DB73, NB5R1_MOUSE;  Q5EB81, NB5R1_RAT  ;
DR   Q5ZHX7, NB5R2_CHICK;  Q0P487, NB5R2_DANRE;  Q6BCY4, NB5R2_HUMAN;
DR   Q3KNK3, NB5R2_MOUSE;  Q6AY12, NB5R2_RAT  ;  Q5PQA4, NB5R2_XENLA;
DR   Q5BJ68, NB5R2_XENTR;  P07514, NB5R3_BOVIN;  Q0X0E5, NB5R3_CANFA;
DR   P00387, NB5R3_HUMAN;  Q60HG4, NB5R3_MACFA;  Q9DCN2, NB5R3_MOUSE;
DR   P83686, NB5R3_PIG  ;  P20070, NB5R3_RAT  ;  Q32LH7, NB5R4_BOVIN;
DR   Q502I6, NB5R4_DANRE;  Q7L1T6, NB5R4_HUMAN;  Q3TDX8, NB5R4_MOUSE;
DR   Q68EJ0, NB5R4_RAT  ;  Q28CZ9, NB5R4_XENTR;  Q6IPT4, NB5R5_HUMAN;
DR   B1AS42, NB5R5_MOUSE;  A6R2K7, NCB5R_AJECN;  P83291, NCB5R_ARATH;
DR   Q75AL4, NCB5R_ASHGO;  A1C7E9, NCB5R_ASPCL;  Q4X0B5, NCB5R_ASPFU;
DR   A2QCV4, NCB5R_ASPNC;  Q2UFN3, NCB5R_ASPOR;  Q0CY37, NCB5R_ASPTN;
DR   Q59P03, NCB5R_CANAL;  Q6FLT3, NCB5R_CANGA;  Q1DWN4, NCB5R_COCIM;
DR   P0CP15, NCB5R_CRYNB;  P0CP14, NCB5R_CRYNJ;  Q6BUX2, NCB5R_DEBHA;
DR   Q54NC1, NCB5R_DICDI;  Q5AZB4, NCB5R_EMENI;  Q6CID0, NCB5R_KLULA;
DR   B0CQN7, NCB5R_LACBS;  A5E7U2, NCB5R_LODEL;  A4R935, NCB5R_MAGO7;
DR   Q9UR35, NCB5R_MORAP;  A1DHW1, NCB5R_NEOFI;  Q7RXL1, NCB5R_NEUCR;
DR   Q0UEY4, NCB5R_PHANO;  A5DQ25, NCB5R_PICGU;  A3GF86, NCB5R_PICST;
DR   O74557, NCB5R_SCHPO;  Q4PGW7, NCB5R_USTMA;  A7TNL7, NCB5R_VANPO;
DR   Q6CA86, NCB5R_YARLI;  A6ZVM6, NCB5R_YEAS7;  P38626, NCB5R_YEAST;
//