Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0016491 | molecular_function | oxidoreductase activity |
| A | 0020037 | molecular_function | heme binding |
| A | 0042128 | biological_process | nitrate assimilation |
| A | 0046872 | molecular_function | metal ion binding |
| A | 0048307 | molecular_function | ferredoxin-nitrite reductase activity |
| A | 0051536 | molecular_function | iron-sulfur cluster binding |
| A | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |
| B | 0016491 | molecular_function | oxidoreductase activity |
| B | 0020037 | molecular_function | heme binding |
| B | 0042128 | biological_process | nitrate assimilation |
| B | 0046872 | molecular_function | metal ion binding |
| B | 0048307 | molecular_function | ferredoxin-nitrite reductase activity |
| B | 0051536 | molecular_function | iron-sulfur cluster binding |
| B | 0051539 | molecular_function | 4 iron, 4 sulfur cluster binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 39 |
| Details | BINDING SITE FOR RESIDUE SRM A 601 |
| Chain | Residue |
| A | PHE96 |
| A | ARG149 |
| A | ARG223 |
| A | LYS224 |
| A | ASN226 |
| A | PHE264 |
| A | PHE265 |
| A | SER266 |
| A | PRO267 |
| A | GLN306 |
| A | ARG309 |
| A | ARG98 |
| A | GLN402 |
| A | CYS441 |
| A | THR442 |
| A | LYS449 |
| A | ASN484 |
| A | SER485 |
| A | CYS486 |
| A | GLN488 |
| A | SF4602 |
| A | HOH1001 |
| A | MET107 |
| A | HOH1030 |
| A | HOH1069 |
| A | HOH1111 |
| A | HOH1114 |
| A | HOH1122 |
| A | HOH1130 |
| A | HOH1131 |
| A | HOH1136 |
| A | HOH1140 |
| A | HOH1146 |
| A | ARG109 |
| A | THR141 |
| A | THR142 |
| A | ARG143 |
| A | ASN145 |
| A | GLN147 |
| site_id | AC2 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE SF4 A 602 |
| Chain | Residue |
| A | CYS441 |
| A | CYS447 |
| A | ALA450 |
| A | THR480 |
| A | GLY481 |
| A | CYS482 |
| A | ASN484 |
| A | CYS486 |
| A | SRM601 |
| site_id | AC3 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE K A 603 |
| Chain | Residue |
| A | ILE371 |
| A | GLU401 |
| A | GLN402 |
| A | ASN403 |
| A | HOH1051 |
| site_id | AC4 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE CL A 604 |
| Chain | Residue |
| A | MET175 |
| A | ARG179 |
| A | HOH1130 |
| site_id | AC5 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE CL A 605 |
| Chain | Residue |
| A | ARG99 |
| A | LYS100 |
| A | GLY448 |
| site_id | AC6 |
| Number of Residues | 39 |
| Details | BINDING SITE FOR RESIDUE SRM B 601 |
| Chain | Residue |
| B | PHE96 |
| B | ARG98 |
| B | MET107 |
| B | ARG109 |
| B | THR141 |
| B | THR142 |
| B | ARG143 |
| B | ASN145 |
| B | GLN147 |
| B | ARG149 |
| B | ARG223 |
| B | LYS224 |
| B | ASN226 |
| B | PHE264 |
| B | PHE265 |
| B | SER266 |
| B | PRO267 |
| B | GLN306 |
| B | ARG309 |
| B | GLN402 |
| B | CYS441 |
| B | THR442 |
| B | LYS449 |
| B | ASN484 |
| B | SER485 |
| B | CYS486 |
| B | GLN488 |
| B | SF4602 |
| B | HOH705 |
| B | HOH712 |
| B | HOH758 |
| B | HOH768 |
| B | HOH769 |
| B | HOH804 |
| B | HOH809 |
| B | HOH814 |
| B | HOH823 |
| B | HOH877 |
| B | HOH942 |
| site_id | AC7 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE SF4 B 602 |
| Chain | Residue |
| B | CYS447 |
| B | ALA450 |
| B | THR480 |
| B | GLY481 |
| B | CYS482 |
| B | ASN484 |
| B | CYS486 |
| B | SRM601 |
| B | CYS441 |
| site_id | AC8 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE K B 603 |
| Chain | Residue |
| B | ILE371 |
| B | GLU401 |
| B | GLN402 |
| B | ASN403 |
| B | HOH786 |
| site_id | AC9 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE CL B 604 |
| Chain | Residue |
| B | MET175 |
| B | HOH804 |
| site_id | BC1 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE CL B 605 |
| Chain | Residue |
| B | ARG99 |
| B | LYS100 |
| B | GLY448 |
| B | HOH832 |
| B | HOH893 |
| B | HOH942 |
Functional Information from PROSITE/UniProt
| site_id | PS00365 |
| Number of Residues | 17 |
| Details | NIR_SIR Nitrite and sulfite reductases iron-sulfur/siroheme-binding site. TGCpnsCaqvqvaDIGF |
| Chain | Residue | Details |
| A | THR480-PHE496 | |
