Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0009374 | molecular_function | biotin binding |
| B | 0009374 | molecular_function | biotin binding |
| C | 0009374 | molecular_function | biotin binding |
| D | 0009374 | molecular_function | biotin binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE BTN A 150 |
| Chain | Residue |
| A | ASN23 |
| A | SER88 |
| A | THR90 |
| A | TRP108 |
| A | ASP128 |
| A | HOH978 |
| B | LYS320 |
| A | LEU25 |
| A | SER27 |
| A | TYR43 |
| A | SER45 |
| A | VAL47 |
| A | GLY48 |
| A | ASN49 |
| A | TRP79 |
| site_id | AC2 |
| Number of Residues | 13 |
| Details | BINDING SITE FOR RESIDUE BTN B 350 |
| Chain | Residue |
| A | LYS120 |
| B | ASN223 |
| B | SER227 |
| B | TYR243 |
| B | SER245 |
| B | VAL247 |
| B | ASN249 |
| B | TRP279 |
| B | SER288 |
| B | THR290 |
| B | TRP308 |
| B | ASP328 |
| B | HOH887 |
| site_id | AC3 |
| Number of Residues | 13 |
| Details | BINDING SITE FOR RESIDUE BTN C 550 |
| Chain | Residue |
| C | ASN423 |
| C | SER427 |
| C | TYR443 |
| C | SER445 |
| C | VAL447 |
| C | ASN449 |
| C | TRP479 |
| C | SER488 |
| C | THR490 |
| C | TRP508 |
| C | ASP528 |
| C | HOH977 |
| D | LYS720 |
| site_id | AC4 |
| Number of Residues | 13 |
| Details | BINDING SITE FOR RESIDUE BTN D 750 |
| Chain | Residue |
| C | LYS520 |
| D | ASN623 |
| D | SER627 |
| D | TYR643 |
| D | SER645 |
| D | VAL647 |
| D | ASN649 |
| D | TRP679 |
| D | SER688 |
| D | THR690 |
| D | TRP708 |
| D | ASP728 |
| D | HOH979 |
Functional Information from PROSITE/UniProt
| site_id | PS00577 |
| Number of Residues | 15 |
| Details | AVIDIN_1 Avidin-like domain signature. NakKStlVGhDtFTK |
| Chain | Residue | Details |
| A | ASN118-LYS132 | |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 20 |
| Details | BINDING: |
| Chain | Residue | Details |
| A | TYR43 | |
| B | LYS320 | |
| C | TYR443 | |
| C | TYR454 | |
| C | TRP492 | |
| C | TRP508 | |
| C | LYS520 | |
| D | TYR643 | |
| D | TYR654 | |
| D | TRP692 | |
| D | TRP708 | |
| A | TYR54 | |
| D | LYS720 | |
| A | TRP92 | |
| A | TRP108 | |
| A | LYS120 | |
| B | TYR243 | |
| B | TYR254 | |
| B | TRP292 | |
| B | TRP308 | |
