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 300 |
| Chain | Residue |
| A | ASN23 |
| A | THR90 |
| A | TRP108 |
| A | LEU110 |
| A | ASP128 |
| A | HOH332 |
| D | LYS121 |
| A | LEU25 |
| A | SER27 |
| A | TYR43 |
| A | SER45 |
| A | VAL47 |
| A | ASN49 |
| A | TRP79 |
| A | SER88 |
| site_id | AC2 |
| Number of Residues | 13 |
| Details | BINDING SITE FOR RESIDUE BTN B 400 |
| Chain | Residue |
| B | ASN23 |
| B | SER27 |
| B | TYR43 |
| B | SER45 |
| B | VAL47 |
| B | GLY48 |
| B | ASN49 |
| B | TRP79 |
| B | SER88 |
| B | THR90 |
| B | TRP108 |
| B | ASP128 |
| C | LYS121 |
| site_id | AC3 |
| Number of Residues | 14 |
| Details | BINDING SITE FOR RESIDUE BTN C 500 |
| Chain | Residue |
| B | LYS121 |
| C | ASN23 |
| C | LEU25 |
| C | SER27 |
| C | TYR43 |
| C | SER45 |
| C | VAL47 |
| C | ASN49 |
| C | TRP79 |
| C | SER88 |
| C | THR90 |
| C | TRP108 |
| C | ASP128 |
| C | HOH287 |
| site_id | AC4 |
| Number of Residues | 14 |
| Details | BINDING SITE FOR RESIDUE BTN D 600 |
| Chain | Residue |
| A | LYS121 |
| D | ASN23 |
| D | LEU25 |
| D | SER27 |
| D | TYR43 |
| D | SER45 |
| D | VAL47 |
| D | GLY48 |
| D | ASN49 |
| D | TRP79 |
| D | SER88 |
| D | THR90 |
| D | TRP108 |
| D | ASP128 |
Functional Information from PROSITE/UniProt
| site_id | PS00577 |
| Number of Residues | 15 |
| Details | AVIDIN_1 Avidin-like domain signature. NaaKStlVGhDtFTK |
| 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 | ALA120 | |
| C | TYR43 | |
| C | TYR54 | |
| C | TRP92 | |
| C | TRP108 | |
| C | ALA120 | |
| D | TYR43 | |
| D | TYR54 | |
| D | TRP92 | |
| D | TRP108 | |
| A | TYR54 | |
| D | ALA120 | |
| A | TRP92 | |
| A | TRP108 | |
| A | ALA120 | |
| B | TYR43 | |
| B | TYR54 | |
| B | TRP92 | |
| B | TRP108 | |
