Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0005509 | molecular_function | calcium ion binding |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0020037 | molecular_function | heme binding |
| A | 0042128 | biological_process | nitrate assimilation |
| A | 0042279 | molecular_function | nitrite reductase (cytochrome, ammonia-forming) activity |
| A | 0042597 | cellular_component | periplasmic space |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0097164 | biological_process | ammonium ion metabolic process |
| B | 0005509 | molecular_function | calcium ion binding |
| B | 0016491 | molecular_function | oxidoreductase activity |
| B | 0020037 | molecular_function | heme binding |
| B | 0042128 | biological_process | nitrate assimilation |
| B | 0042279 | molecular_function | nitrite reductase (cytochrome, ammonia-forming) activity |
| B | 0042597 | cellular_component | periplasmic space |
| B | 0046872 | molecular_function | metal ion binding |
| B | 0097164 | biological_process | ammonium ion metabolic process |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 23 |
| Details | BINDING SITE FOR RESIDUE HEC A 1004 |
| Chain | Residue |
| A | NO21 |
| A | CYS187 |
| A | LYS188 |
| A | ARG242 |
| A | CYS299 |
| A | HIS300 |
| A | TYR303 |
| A | CYS305 |
| A | HIS361 |
| A | ASN486 |
| A | HOH755 |
| A | HIS113 |
| A | HOH867 |
| A | HOH868 |
| A | HOH874 |
| A | HEC1006 |
| A | ALA114 |
| A | ASP125 |
| A | HIS126 |
| A | VAL129 |
| A | ARG131 |
| A | ALA179 |
| A | CYS184 |
| site_id | AC2 |
| Number of Residues | 19 |
| Details | BINDING SITE FOR RESIDUE HEC A 1005 |
| Chain | Residue |
| A | CYS66 |
| A | HIS70 |
| A | GLN73 |
| A | PHE74 |
| A | LEU225 |
| A | CYS227 |
| A | CYS230 |
| A | HIS231 |
| A | ALA290 |
| A | MET384 |
| A | TYR395 |
| A | THR396 |
| A | HIS398 |
| A | HOH572 |
| A | HOH716 |
| A | HOH842 |
| A | HOH951 |
| A | HOH972 |
| A | HEC1003 |
| site_id | AC3 |
| Number of Residues | 24 |
| Details | BINDING SITE FOR RESIDUE HEC A 1006 |
| Chain | Residue |
| A | SER84 |
| A | PRO116 |
| A | ARG117 |
| A | HIS119 |
| A | PHE121 |
| A | MET122 |
| A | ASP125 |
| A | CYS187 |
| A | LYS188 |
| A | LEU225 |
| A | MET229 |
| A | CYS296 |
| A | CYS299 |
| A | HIS300 |
| A | HIS383 |
| A | MET384 |
| A | GLN400 |
| A | ARG401 |
| A | HOH737 |
| A | HOH763 |
| A | HOH862 |
| A | HEC1004 |
| A | HEC1007 |
| A | HOH1054 |
| site_id | AC4 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE HEC A 1007 |
| Chain | Residue |
| A | HIS300 |
| A | PHE367 |
| A | HIS372 |
| A | ALA378 |
| A | CYS379 |
| A | CYS382 |
| A | HIS383 |
| A | THR402 |
| A | ARG404 |
| A | LYS431 |
| A | ASN486 |
| A | PHE490 |
| A | HIS491 |
| A | HOH862 |
| A | HOH871 |
| A | HEC1006 |
| A | HOH1054 |
| A | HOH1071 |
| site_id | AC5 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE HEC A 1008 |
| Chain | Residue |
| A | HOH601 |
| A | HOH1117 |
| A | TRP142 |
| A | GLN143 |
| A | VAL371 |
| A | HIS372 |
| A | PRO403 |
| A | ALA410 |
| A | CYS411 |
| A | CYS414 |
| A | HIS415 |
| A | TRP418 |
| A | ILE427 |
| A | PHE490 |
| A | PRO493 |
| A | HOH581 |
| A | HOH584 |
| site_id | AC6 |
| Number of Residues | 25 |
| Details | BINDING SITE FOR RESIDUE HEC A 1002 |
| Chain | Residue |
| A | CYS14 |
| A | PHE15 |
| A | HIS18 |
| A | ILE21 |
| A | HIS25 |
| A | VAL33 |
| A | ASN34 |
| A | CYS35 |
| A | CYS38 |
| A | HIS39 |
| A | THR59 |
| A | ILE193 |
| A | LEU194 |
| A | PHE228 |
| A | PRO233 |
| A | HIS234 |
| A | ARG239 |
| A | PHE274 |
| A | ARG276 |
| A | ARG282 |
| A | HOH613 |
| A | HOH814 |
| A | HEC1001 |
| A | HEC1003 |
| A | HOH1059 |
| site_id | AC7 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE HEC A 1003 |
| Chain | Residue |
| A | LYS29 |
| A | HIS30 |
| A | HIS37 |
| A | ALA65 |
| A | CYS66 |
| A | CYS69 |
| A | HIS70 |
| A | CYS227 |
| A | HIS231 |
| A | ALA236 |
| A | HOH525 |
| A | HOH651 |
| A | HEC1002 |
| A | HEC1005 |
| A | HOH1068 |
| A | HOH1096 |
| A | HOH1186 |
| site_id | AC8 |
| Number of Residues | 25 |
| Details | BINDING SITE FOR RESIDUE HEC A 1001 |
| Chain | Residue |
| A | GLN13 |
| A | CYS14 |
| A | CYS17 |
| A | HIS18 |
| A | HIS39 |
| A | ALA41 |
| A | HIS44 |
| A | VAL45 |
| A | ALA48 |
| A | SER49 |
| A | SER50 |
| A | ARG52 |
| A | MET53 |
| A | ARG56 |
| A | PRO57 |
| A | THR59 |
| A | LEU194 |
| A | ARG276 |
| A | GLY277 |
| A | HOH528 |
| A | HOH614 |
| A | HOH816 |
| A | HOH840 |
| A | HEC1002 |
| A | HOH1153 |
| site_id | AC9 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE NO2 A 1 |
| Chain | Residue |
| A | PHE109 |
| A | ARG131 |
| A | TYR303 |
| A | HIS361 |
| A | HEC1004 |
| A | HOH1073 |
| site_id | BC1 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CA A 2 |
| Chain | Residue |
| A | GLU302 |
| A | TYR303 |
| A | LYS358 |
| A | GLN360 |
| A | HOH954 |
| A | HOH955 |
| site_id | BC2 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE MRD A 3 |
| Chain | Residue |
| A | ARG87 |
| A | VAL128 |
| A | GLN138 |
| A | PHE139 |
| A | TRP142 |
| A | VAL145 |
| A | ARG497 |
| A | HOH625 |
| site_id | BC3 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC B 1004 |
| Chain | Residue |
| B | NO21 |
| B | HIS113 |
| B | ALA114 |
| B | ASP125 |
| B | HIS126 |
| B | VAL129 |
| B | ARG131 |
| B | CYS184 |
| B | CYS187 |
| B | LYS188 |
| B | ARG242 |
| B | CYS299 |
| B | HIS300 |
| B | TYR303 |
| B | CYS305 |
| B | HIS361 |
| B | ASN486 |
| B | HOH772 |
| B | HOH884 |
| B | HOH885 |
| B | HOH891 |
| B | HEC1006 |
| site_id | BC4 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC B 1005 |
| Chain | Residue |
| B | CYS66 |
| B | HIS70 |
| B | GLN73 |
| B | PHE74 |
| B | LEU225 |
| B | ASN226 |
| B | CYS227 |
| B | CYS230 |
| B | HIS231 |
| B | ALA290 |
| B | MET384 |
| B | TYR395 |
| B | THR396 |
| B | HIS398 |
| B | HOH572 |
| B | HOH728 |
| B | HOH732 |
| B | HOH859 |
| B | HOH968 |
| B | HOH989 |
| B | HEC1003 |
| B | HEC1006 |
| site_id | BC5 |
| Number of Residues | 25 |
| Details | BINDING SITE FOR RESIDUE HEC B 1006 |
| Chain | Residue |
| B | SER84 |
| B | PRO116 |
| B | ARG117 |
| B | HIS119 |
| B | PHE121 |
| B | MET122 |
| B | ASP125 |
| B | CYS187 |
| B | LYS188 |
| B | LEU225 |
| B | MET229 |
| B | CYS296 |
| B | CYS299 |
| B | HIS300 |
| B | HIS383 |
| B | MET384 |
| B | GLN400 |
| B | ARG401 |
| B | HOH761 |
| B | HOH780 |
| B | HOH879 |
| B | HEC1004 |
| B | HEC1005 |
| B | HEC1007 |
| B | HOH1071 |
| site_id | BC6 |
| Number of Residues | 21 |
| Details | BINDING SITE FOR RESIDUE HEC B 1007 |
| Chain | Residue |
| B | HIS300 |
| B | PHE367 |
| B | HIS372 |
| B | ALA378 |
| B | CYS379 |
| B | CYS382 |
| B | HIS383 |
| B | THR402 |
| B | PRO403 |
| B | ARG404 |
| B | ILE427 |
| B | LYS431 |
| B | ASN486 |
| B | PHE490 |
| B | HIS491 |
| B | HOH879 |
| B | HOH880 |
| B | HOH888 |
| B | HEC1006 |
| B | HOH1071 |
| B | HOH1087 |
| site_id | BC7 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE HEC B 1008 |
| Chain | Residue |
| B | TRP142 |
| B | GLN143 |
| B | VAL371 |
| B | HIS372 |
| B | PRO403 |
| B | ALA410 |
| B | CYS411 |
| B | CYS414 |
| B | HIS415 |
| B | TRP418 |
| B | ILE427 |
| B | PHE490 |
| B | HOH531 |
| B | HOH581 |
| B | HOH1133 |
| site_id | BC8 |
| Number of Residues | 24 |
| Details | BINDING SITE FOR RESIDUE HEC B 1002 |
| Chain | Residue |
| B | CYS14 |
| B | PHE15 |
| B | HIS18 |
| B | ILE21 |
| B | HIS25 |
| B | VAL33 |
| B | ASN34 |
| B | CYS35 |
| B | CYS38 |
| B | HIS39 |
| B | THR59 |
| B | ILE193 |
| B | LEU194 |
| B | PHE228 |
| B | PRO233 |
| B | HIS234 |
| B | ARG239 |
| B | PHE274 |
| B | ARG276 |
| B | ARG282 |
| B | HOH831 |
| B | HEC1001 |
| B | HEC1003 |
| B | HOH1076 |
| site_id | BC9 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE HEC B 1003 |
| Chain | Residue |
| B | LYS29 |
| B | HIS30 |
| B | HIS37 |
| B | ALA65 |
| B | CYS66 |
| B | CYS69 |
| B | HIS70 |
| B | CYS227 |
| B | HIS231 |
| B | ALA236 |
| B | HOH525 |
| B | HOH603 |
| B | HOH629 |
| B | HEC1002 |
| B | HEC1005 |
| B | HOH1084 |
| B | HOH1112 |
| site_id | CC1 |
| Number of Residues | 28 |
| Details | BINDING SITE FOR RESIDUE HEC B 1001 |
| Chain | Residue |
| B | GLN13 |
| B | CYS14 |
| B | CYS17 |
| B | HIS18 |
| B | HIS39 |
| B | ALA41 |
| B | HIS44 |
| B | VAL45 |
| B | ALA48 |
| B | SER49 |
| B | SER50 |
| B | ARG51 |
| B | ARG51 |
| B | ARG52 |
| B | MET53 |
| B | ARG56 |
| B | PRO57 |
| B | THR59 |
| B | LEU194 |
| B | GLN275 |
| B | ARG276 |
| B | HOH526 |
| B | HOH528 |
| B | HOH637 |
| B | HOH833 |
| B | HOH857 |
| B | HEC1002 |
| B | HOH1076 |
| site_id | CC2 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE NO2 B 1 |
| Chain | Residue |
| B | PHE109 |
| B | ARG131 |
| B | TYR303 |
| B | HIS361 |
| B | HEC1004 |
| B | HOH1089 |
| site_id | CC3 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CA B 2 |
| Chain | Residue |
| B | GLU302 |
| B | TYR303 |
| B | LYS358 |
| B | GLN360 |
| B | HOH971 |
| B | HOH972 |
| site_id | CC4 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE MRD B 3 |
| Chain | Residue |
| B | ARG87 |
| B | GLN138 |
| B | PHE139 |
| B | TRP142 |
| B | VAL145 |
| B | TYR433 |
| B | ARG497 |
| B | HOH653 |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | CYS14 | |
| A | CYS230 | |
| A | CYS296 | |
| A | CYS299 | |
| A | CYS379 | |
| A | CYS382 | |
| A | CYS411 | |
| A | CYS414 | |
| B | CYS14 | |
| B | CYS17 | |
| B | CYS35 | |
| A | CYS17 | |
| B | CYS38 | |
| B | CYS66 | |
| B | CYS69 | |
| B | CYS184 | |
| B | CYS187 | |
| B | CYS227 | |
| B | CYS230 | |
| B | CYS296 | |
| B | CYS299 | |
| B | CYS379 | |
| A | CYS35 | |
| B | CYS382 | |
| B | CYS411 | |
| B | CYS414 | |
| A | CYS38 | |
| A | CYS66 | |
| A | CYS69 | |
| A | CYS184 | |
| A | CYS187 | |
| A | CYS227 | |
| Chain | Residue | Details |
| A | HIS18 | |
| A | HIS372 | |
| A | HIS383 | |
| A | HIS398 | |
| A | HIS415 | |
| A | HIS491 | |
| B | HIS18 | |
| B | HIS30 | |
| B | HIS39 | |
| B | HIS44 | |
| B | HIS70 | |
| A | HIS30 | |
| B | HIS119 | |
| B | LYS188 | |
| B | HIS234 | |
| B | HIS300 | |
| B | HIS372 | |
| B | HIS383 | |
| B | HIS398 | |
| B | HIS415 | |
| B | HIS491 | |
| A | HIS39 | |
| A | HIS44 | |
| A | HIS70 | |
| A | HIS119 | |
| A | LYS188 | |
| A | HIS234 | |
| A | HIS300 | |
| Chain | Residue | Details |
| A | HIS231 | |
| B | HIS231 | |
| Chain | Residue | Details |
| A | GLU302 | |
| A | TYR303 | |
| A | LYS358 | |
| A | GLN360 | |
| B | GLU302 | |
| B | TYR303 | |
| B | LYS358 | |
| B | GLN360 | |
| Chain | Residue | Details |
| A | TYR303 | |
| A | CYS305 | |
| B | TYR303 | |
| B | CYS305 | |
