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 | 24 |
| Details | BINDING SITE FOR RESIDUE HEC A 1004 |
| Chain | Residue |
| A | HIS113 |
| A | ARG242 |
| A | CYS299 |
| A | HIS300 |
| A | TYR303 |
| A | CYS305 |
| A | HIS361 |
| A | ASN486 |
| A | SO3526 |
| A | HOH536 |
| A | HOH553 |
| A | ALA114 |
| A | HOH672 |
| A | HOH673 |
| A | HOH679 |
| A | HOH688 |
| A | HEC1006 |
| A | ASP125 |
| A | HIS126 |
| A | VAL129 |
| A | ARG131 |
| A | CYS184 |
| A | CYS187 |
| A | LYS188 |
| site_id | AC2 |
| Number of Residues | 19 |
| Details | BINDING SITE FOR RESIDUE HEC A 1005 |
| Chain | Residue |
| A | HIS70 |
| A | GLN73 |
| A | LEU225 |
| A | ASN226 |
| A | CYS227 |
| A | CYS230 |
| A | HIS231 |
| A | MET384 |
| A | TYR395 |
| A | THR396 |
| A | HIS398 |
| A | HOH646 |
| A | HOH755 |
| A | HOH776 |
| A | HOH939 |
| A | HOH973 |
| A | HEC1003 |
| A | HEC1006 |
| A | HOH1024 |
| site_id | AC3 |
| Number of Residues | 22 |
| 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 | MET229 |
| A | CYS296 |
| A | CYS299 |
| A | HIS300 |
| A | HIS383 |
| A | MET384 |
| A | CA528 |
| A | HOH544 |
| A | HOH560 |
| A | HOH667 |
| A | HEC1004 |
| A | HEC1005 |
| A | HEC1007 |
| site_id | AC4 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC A 1007 |
| Chain | Residue |
| A | HIS300 |
| A | GLU363 |
| 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 | CA528 |
| A | HOH667 |
| A | HOH668 |
| A | HOH676 |
| A | HOH680 |
| A | HOH867 |
| A | HOH921 |
| A | HEC1006 |
| site_id | AC5 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE HEC A 1008 |
| Chain | Residue |
| A | PHE490 |
| A | HOH621 |
| A | HOH953 |
| A | ASN141 |
| A | TRP142 |
| A | GLN143 |
| A | VAL371 |
| A | HIS372 |
| A | PRO403 |
| A | ALA410 |
| A | CYS411 |
| A | CYS414 |
| A | HIS415 |
| A | TRP418 |
| A | ILE427 |
| site_id | AC6 |
| Number of Residues | 23 |
| 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 | LEU194 |
| A | PHE228 |
| A | PRO233 |
| A | HIS234 |
| A | ARG239 |
| A | PHE274 |
| A | ARG276 |
| A | ARG282 |
| A | HOH613 |
| A | HOH877 |
| A | HOH996 |
| A | HEC1001 |
| A | HEC1003 |
| site_id | AC7 |
| Number of Residues | 20 |
| Details | BINDING SITE FOR RESIDUE HEC A 1003 |
| Chain | Residue |
| A | LYS29 |
| A | HIS30 |
| A | HIS37 |
| A | ALA65 |
| A | CYS66 |
| A | THR68 |
| A | CYS69 |
| A | HIS70 |
| A | CYS227 |
| A | HIS231 |
| A | ALA236 |
| A | HOH805 |
| A | HOH841 |
| A | HOH924 |
| A | HOH925 |
| A | HEC1002 |
| A | HEC1005 |
| A | HOH1063 |
| A | HOH1076 |
| B | THR68 |
| site_id | AC8 |
| Number of Residues | 23 |
| Details | BINDING SITE FOR RESIDUE HEC A 1001 |
| Chain | Residue |
| A | GLN13 |
| A | CYS14 |
| A | CYS17 |
| A | HIS18 |
| A | HIS39 |
| 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 | HOH616 |
| A | HOH644 |
| A | HOH880 |
| A | HOH997 |
| A | HEC1002 |
| site_id | AC9 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE SO3 A 526 |
| Chain | Residue |
| A | PHE109 |
| A | ARG131 |
| A | TYR303 |
| A | HIS361 |
| A | HOH536 |
| A | HOH679 |
| A | HOH688 |
| A | HOH984 |
| A | HEC1004 |
| site_id | BC1 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CA A 527 |
| Chain | Residue |
| A | GLU302 |
| A | TYR303 |
| A | LYS358 |
| A | GLN360 |
| A | HOH758 |
| A | HOH759 |
| site_id | BC2 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CA A 528 |
| Chain | Residue |
| A | PRO116 |
| A | HOH574 |
| A | HOH867 |
| A | HOH946 |
| A | HEC1006 |
| A | HEC1007 |
| site_id | BC3 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE PG6 A 529 |
| Chain | Residue |
| A | LEU311 |
| A | GLY314 |
| A | ARG348 |
| A | ALA355 |
| site_id | BC4 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE PG4 A 530 |
| Chain | Residue |
| A | ASP428 |
| A | LYS431 |
| A | ASN432 |
| A | HIS435 |
| A | HOH1031 |
| site_id | BC5 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE PG4 A 531 |
| Chain | Residue |
| A | GLN138 |
| A | PHE139 |
| A | TRP142 |
| site_id | BC6 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE PG4 A 532 |
| Chain | Residue |
| A | ARG171 |
| A | PHE172 |
| A | LEU173 |
| A | SER174 |
| site_id | BC7 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE PG4 A 534 |
| site_id | BC8 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE PG4 A 535 |
| site_id | BC9 |
| Number of Residues | 23 |
| Details | BINDING SITE FOR RESIDUE HEC B 1004 |
| Chain | Residue |
| 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 | SO3526 |
| B | HOH537 |
| B | HOH668 |
| B | HOH783 |
| B | HOH784 |
| B | HOH790 |
| B | HEC1006 |
| site_id | CC1 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE HEC B 1005 |
| Chain | Residue |
| B | HIS70 |
| B | GLN73 |
| B | LEU225 |
| B | ASN226 |
| B | CYS227 |
| B | CYS230 |
| B | HIS231 |
| B | MET384 |
| B | TYR395 |
| B | THR396 |
| B | HIS398 |
| B | HOH757 |
| B | HOH866 |
| B | HOH887 |
| B | HEC1003 |
| B | HEC1006 |
| B | HOH1056 |
| site_id | CC2 |
| Number of Residues | 22 |
| 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 | MET229 |
| B | CYS296 |
| B | CYS299 |
| B | HIS300 |
| B | HIS383 |
| B | MET384 |
| B | CA528 |
| B | HOH659 |
| B | HOH675 |
| B | HOH778 |
| B | HEC1004 |
| B | HEC1005 |
| B | HEC1007 |
| site_id | CC3 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC B 1007 |
| Chain | Residue |
| B | HIS300 |
| B | GLU363 |
| B | PHE367 |
| B | HIS372 |
| B | ALA378 |
| B | CYS379 |
| B | CYS382 |
| B | HIS383 |
| B | THR402 |
| B | ARG404 |
| B | LYS431 |
| B | ASN486 |
| B | PHE490 |
| B | HIS491 |
| B | CA528 |
| B | HOH778 |
| B | HOH779 |
| B | HOH787 |
| B | HOH791 |
| B | HOH976 |
| B | HEC1006 |
| B | HOH1038 |
| site_id | CC4 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE HEC B 1008 |
| Chain | Residue |
| B | ASN141 |
| 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 | HOH564 |
| B | HOH611 |
| B | HOH1070 |
| site_id | CC5 |
| Number of Residues | 23 |
| 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 | ILE193 |
| B | LEU194 |
| B | PHE228 |
| B | PRO233 |
| B | HIS234 |
| B | ARG239 |
| B | PHE274 |
| B | ARG276 |
| B | ARG282 |
| B | HOH726 |
| B | HOH986 |
| B | HEC1001 |
| B | HEC1003 |
| site_id | CC6 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC B 1003 |
| Chain | Residue |
| A | HIS37 |
| A | THR68 |
| B | LYS29 |
| B | HIS30 |
| B | HIS37 |
| B | ALA65 |
| B | CYS66 |
| B | THR68 |
| B | CYS69 |
| B | HIS70 |
| B | CYS227 |
| B | HIS231 |
| B | ALA236 |
| B | HOH551 |
| B | HOH643 |
| B | HOH654 |
| B | HOH916 |
| B | HOH950 |
| B | HEC1002 |
| B | HEC1005 |
| B | HOH1041 |
| B | HOH1042 |
| site_id | CC7 |
| Number of Residues | 27 |
| Details | BINDING SITE FOR RESIDUE HEC B 1001 |
| Chain | Residue |
| B | GLN13 |
| B | CYS14 |
| B | CYS17 |
| B | HIS18 |
| B | HIS39 |
| 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 | GLN275 |
| B | ARG276 |
| B | HOH567 |
| B | HOH583 |
| B | HOH729 |
| B | HOH755 |
| B | HOH986 |
| B | HEC1002 |
| B | HOH1015 |
| B | HOH1085 |
| site_id | CC8 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE SO3 B 526 |
| Chain | Residue |
| B | PHE109 |
| B | ARG131 |
| B | TYR303 |
| B | GLN360 |
| B | HIS361 |
| B | HOH537 |
| B | HOH790 |
| B | HOH799 |
| B | HEC1004 |
| site_id | CC9 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CA B 527 |
| Chain | Residue |
| B | GLU302 |
| B | TYR303 |
| B | LYS358 |
| B | GLN360 |
| B | HOH869 |
| B | HOH870 |
| site_id | DC1 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CA B 528 |
| Chain | Residue |
| B | PRO116 |
| B | HOH688 |
| B | HOH976 |
| B | HEC1006 |
| B | HEC1007 |
| B | HOH1063 |
| site_id | DC2 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE SO3 B 529 |
| Chain | Residue |
| B | SER50 |
| B | SER50 |
| B | SER50 |
| B | HOH641 |
| B | HOH641 |
| B | HOH641 |
| site_id | DC3 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE PG6 B 530 |
| Chain | Residue |
| B | LEU311 |
| B | GLY314 |
| B | ARG348 |
| site_id | DC4 |
| Number of Residues | 1 |
| Details | BINDING SITE FOR RESIDUE PG6 B 531 |
| site_id | DC5 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE PG4 B 532 |
| Chain | Residue |
| B | GLN138 |
| B | PHE139 |
| B | TRP142 |
| B | HOH578 |
| B | HOH636 |
| site_id | DC6 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE PG4 B 533 |
| Chain | Residue |
| B | ARG171 |
| B | PHE172 |
| site_id | DC7 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE PG4 B 535 |
| site_id | DC8 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE PG4 B 536 |
| Chain | Residue |
| B | PRO307 |
| B | GLY308 |
| B | TYR309 |
| B | ARG316 |
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 | |
