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 601 |
| Chain | Residue |
| A | HIS113 |
| A | LYS188 |
| A | ARG242 |
| A | CYS299 |
| A | HIS300 |
| A | TYR303 |
| A | CYS305 |
| A | HIS361 |
| A | ASN486 |
| A | HEC603 |
| A | SO3609 |
| A | ALA114 |
| A | HOH702 |
| A | HOH720 |
| A | HOH830 |
| A | HOH1013 |
| A | ASP125 |
| A | HIS126 |
| A | VAL129 |
| A | ARG131 |
| A | ALA179 |
| A | CYS184 |
| A | CYS187 |
| site_id | AC2 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE HEC A 602 |
| Chain | Residue |
| A | CYS66 |
| A | HIS70 |
| A | GLN73 |
| A | LEU225 |
| A | CYS227 |
| A | CYS230 |
| A | HIS231 |
| A | ALA290 |
| A | MET384 |
| A | TYR395 |
| A | THR396 |
| A | HIS398 |
| A | HEC603 |
| A | HEC607 |
| A | ACT616 |
| A | HOH824 |
| A | HOH951 |
| A | HOH1052 |
| site_id | AC3 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC A 603 |
| 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 | HEC601 |
| A | HEC602 |
| A | HEC604 |
| A | HOH704 |
| A | HOH710 |
| A | HOH741 |
| A | HOH890 |
| site_id | AC4 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC A 604 |
| Chain | Residue |
| A | HIS300 |
| A | PHE367 |
| A | HIS372 |
| A | ALA378 |
| A | CYS379 |
| A | CYS382 |
| A | HIS383 |
| A | THR402 |
| A | PRO403 |
| A | ARG404 |
| A | LYS431 |
| A | ASN486 |
| A | PHE490 |
| A | HIS491 |
| A | HEC603 |
| A | HEC605 |
| A | HOH741 |
| A | HOH885 |
| A | HOH890 |
| A | HOH893 |
| A | HOH922 |
| A | HOH1001 |
| site_id | AC5 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE HEC A 605 |
| Chain | Residue |
| A | HOH895 |
| A | HOH913 |
| A | HOH1111 |
| A | HOH1149 |
| A | ASN141 |
| A | TRP142 |
| A | GLN143 |
| A | VAL371 |
| A | HIS372 |
| A | PRO403 |
| A | ALA410 |
| A | CYS411 |
| A | CYS414 |
| A | HIS415 |
| A | TRP418 |
| A | ILE427 |
| A | HEC604 |
| A | HOH871 |
| site_id | AC6 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC A 606 |
| 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 | HEC607 |
| A | HEC608 |
| A | HOH791 |
| A | HOH997 |
| site_id | AC7 |
| Number of Residues | 19 |
| Details | BINDING SITE FOR RESIDUE HEC A 607 |
| 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 | HEC602 |
| A | HEC606 |
| A | ACT616 |
| A | HOH1110 |
| A | HOH1177 |
| A | HOH1224 |
| A | HOH1269 |
| B | THR68 |
| site_id | AC8 |
| Number of Residues | 27 |
| Details | BINDING SITE FOR RESIDUE HEC A 608 |
| 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 | GLN275 |
| A | ARG276 |
| A | HEC606 |
| A | HOH780 |
| A | HOH873 |
| A | HOH880 |
| A | HOH933 |
| A | HOH997 |
| A | HOH1119 |
| A | HOH1228 |
| A | HOH1249 |
| site_id | AC9 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE SO3 A 609 |
| Chain | Residue |
| A | PHE109 |
| A | ARG131 |
| A | TYR303 |
| A | GLN360 |
| A | HIS361 |
| A | HEC601 |
| A | HOH781 |
| A | HOH1013 |
| site_id | BC1 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CA A 610 |
| Chain | Residue |
| A | GLU302 |
| A | TYR303 |
| A | LYS358 |
| A | GLN360 |
| A | HOH750 |
| A | HOH805 |
| site_id | BC2 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE MPD A 611 |
| Chain | Residue |
| A | ARG87 |
| A | GLN138 |
| A | PHE139 |
| A | TRP142 |
| A | ARG497 |
| A | HOH928 |
| site_id | BC3 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE SO3 A 612 |
| Chain | Residue |
| A | HIS18 |
| A | THR19 |
| A | GLN20 |
| A | ILE21 |
| A | PHE274 |
| A | HOH997 |
| A | HOH1244 |
| site_id | BC4 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE ACT A 613 |
| Chain | Residue |
| A | TYR198 |
| A | LYS271 |
| A | HOH841 |
| A | HOH1239 |
| site_id | BC5 |
| Number of Residues | 13 |
| Details | BINDING SITE FOR RESIDUE TRS A 614 |
| Chain | Residue |
| A | MET99 |
| A | MET99 |
| A | LYS102 |
| A | LYS102 |
| A | HOH891 |
| A | HOH891 |
| A | HOH891 |
| A | HOH929 |
| A | HOH929 |
| A | HOH929 |
| A | HOH1019 |
| A | HOH1019 |
| A | HOH1019 |
| site_id | BC6 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE SO3 A 615 |
| Chain | Residue |
| A | SER50 |
| A | ARG51 |
| B | ARG252 |
| B | LEU254 |
| B | GLU341 |
| B | HOH822 |
| B | HOH986 |
| B | HOH1291 |
| site_id | BC7 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE ACT A 616 |
| Chain | Residue |
| A | HIS70 |
| A | HEC602 |
| A | HEC607 |
| A | HOH1177 |
| A | HOH1279 |
| B | THR68 |
| B | HOH792 |
| site_id | BC8 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC B 601 |
| 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 | HEC603 |
| B | SO3610 |
| B | HOH725 |
| B | HOH743 |
| B | HOH854 |
| B | HOH1038 |
| site_id | BC9 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE HEC B 602 |
| Chain | Residue |
| B | CYS66 |
| B | HIS70 |
| B | GLN73 |
| B | LEU225 |
| B | CYS227 |
| B | CYS230 |
| B | HIS231 |
| B | MET384 |
| B | TYR395 |
| B | THR396 |
| B | HIS398 |
| B | HEC603 |
| B | HEC607 |
| B | ACT609 |
| B | HOH848 |
| B | HOH976 |
| B | HOH1077 |
| site_id | CC1 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEC B 603 |
| 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 | HEC601 |
| B | HEC602 |
| B | HEC604 |
| B | HOH727 |
| B | HOH733 |
| B | HOH764 |
| B | HOH914 |
| site_id | CC2 |
| Number of Residues | 21 |
| Details | BINDING SITE FOR RESIDUE HEC B 604 |
| Chain | Residue |
| B | HIS300 |
| 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 | HEC603 |
| B | HEC605 |
| B | HOH764 |
| B | HOH909 |
| B | HOH914 |
| B | HOH917 |
| B | HOH947 |
| B | HOH1026 |
| site_id | CC3 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE HEC B 605 |
| Chain | Residue |
| B | ASN141 |
| B | TRP142 |
| B | GLN143 |
| B | VAL371 |
| B | HIS372 |
| B | ASN375 |
| B | PRO403 |
| B | ALA410 |
| B | CYS411 |
| B | CYS414 |
| B | HIS415 |
| B | TRP418 |
| B | ILE427 |
| B | HEC604 |
| B | HOH895 |
| B | HOH937 |
| B | HOH1135 |
| B | HOH1173 |
| site_id | CC4 |
| Number of Residues | 24 |
| Details | BINDING SITE FOR RESIDUE HEC B 606 |
| 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 | HEC607 |
| B | HEC608 |
| B | HOH814 |
| B | HOH1022 |
| site_id | CC5 |
| Number of Residues | 20 |
| Details | BINDING SITE FOR RESIDUE HEC B 607 |
| Chain | Residue |
| 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 | HEC602 |
| B | HEC606 |
| B | ACT609 |
| B | HOH710 |
| B | HOH1134 |
| B | HOH1201 |
| B | HOH1257 |
| B | HOH1272 |
| site_id | CC6 |
| Number of Residues | 27 |
| Details | BINDING SITE FOR RESIDUE HEC B 608 |
| Chain | Residue |
| B | GLN13 |
| B | CYS14 |
| B | CYS17 |
| B | HIS18 |
| B | HIS39 |
| B | HIS44 |
| B | VAL45 |
| B | ALA48 |
| B | SER49 |
| B | ARG51 |
| B | ARG51 |
| B | ARG52 |
| B | MET53 |
| B | ARG56 |
| B | PRO57 |
| B | THR59 |
| B | LEU194 |
| B | GLN275 |
| B | ARG276 |
| B | HEC606 |
| B | HOH803 |
| B | HOH897 |
| B | HOH904 |
| B | HOH958 |
| B | HOH1022 |
| B | HOH1143 |
| B | HOH1286 |
| site_id | CC7 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE ACT B 609 |
| Chain | Residue |
| A | THR68 |
| B | HIS70 |
| B | HEC602 |
| B | HEC607 |
| B | HOH720 |
| B | HOH722 |
| B | HOH1201 |
| site_id | CC8 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE SO3 B 610 |
| Chain | Residue |
| B | PHE109 |
| B | ARG131 |
| B | TYR303 |
| B | GLN360 |
| B | HIS361 |
| B | HEC601 |
| B | HOH804 |
| B | HOH1038 |
| site_id | CC9 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CA B 611 |
| Chain | Residue |
| B | GLU302 |
| B | TYR303 |
| B | LYS358 |
| B | GLN360 |
| B | HOH773 |
| B | HOH828 |
| site_id | DC1 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE MPD B 612 |
| Chain | Residue |
| B | ARG87 |
| B | GLN138 |
| B | PHE139 |
| B | TRP142 |
| B | ARG497 |
| B | HOH953 |
| site_id | DC2 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE SO3 B 613 |
| Chain | Residue |
| B | HIS18 |
| B | THR19 |
| B | GLN20 |
| B | ILE21 |
| B | PHE274 |
| B | HOH922 |
| B | HOH1022 |
| site_id | DC3 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE ACT B 614 |
| Chain | Residue |
| B | TYR198 |
| B | LYS271 |
| B | HOH865 |
| site_id | DC4 |
| Number of Residues | 11 |
| Details | BINDING SITE FOR RESIDUE TRS B 615 |
| Chain | Residue |
| B | LYS102 |
| B | LYS102 |
| B | HOH915 |
| B | HOH915 |
| B | HOH930 |
| B | HOH954 |
| B | HOH954 |
| B | HOH954 |
| B | HOH1044 |
| B | HOH1044 |
| B | HOH1044 |
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 | |
