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 | 4 |
| Details | binding site for residue SO3 A 201 |
| Chain | Residue |
| A | ASN49 |
| A | TRP79 |
| A | SO3202 |
| A | HOH304 |
| site_id | AC2 |
| Number of Residues | 8 |
| Details | binding site for residue SO3 A 202 |
| Chain | Residue |
| A | SO3201 |
| A | HOH321 |
| C | TRP120 |
| A | TRP79 |
| A | THR90 |
| A | TRP92 |
| A | TRP108 |
| A | ASP128 |
| site_id | AC3 |
| Number of Residues | 6 |
| Details | binding site for residue SO3 A 203 |
| Chain | Residue |
| A | VAL125 |
| A | GLY126 |
| A | HIS127 |
| A | HOH307 |
| B | GLN107 |
| C | ALA119 |
| site_id | AC4 |
| Number of Residues | 6 |
| Details | binding site for residue SO3 B 201 |
| Chain | Residue |
| A | GLN107 |
| B | VAL125 |
| B | GLY126 |
| B | HIS127 |
| B | HOH330 |
| D | ALA119 |
| site_id | AC5 |
| Number of Residues | 6 |
| Details | binding site for residue SO3 B 202 |
| Chain | Residue |
| B | TRP79 |
| B | THR90 |
| B | TRP92 |
| B | TRP108 |
| B | ASP128 |
| D | TRP120 |
| site_id | AC6 |
| Number of Residues | 6 |
| Details | binding site for residue SO3 C 201 |
| Chain | Residue |
| A | ALA119 |
| A | SER122 |
| C | VAL125 |
| C | GLY126 |
| C | HIS127 |
| D | GLN107 |
| site_id | AC7 |
| Number of Residues | 11 |
| Details | binding site for residue 6FX C 202 |
| Chain | Residue |
| C | ASN23 |
| C | SER27 |
| C | TYR43 |
| C | TRP79 |
| C | ALA86 |
| C | SER88 |
| C | TRP92 |
| C | TRP108 |
| C | LEU110 |
| C | ASP128 |
| C | HOH365 |
| site_id | AC8 |
| Number of Residues | 6 |
| Details | binding site for residue SO3 D 201 |
| Chain | Residue |
| B | ALA119 |
| C | GLN107 |
| D | VAL125 |
| D | GLY126 |
| D | HIS127 |
| D | HOH342 |
| site_id | AC9 |
| Number of Residues | 11 |
| Details | binding site for residue 6FX D 202 |
| Chain | Residue |
| D | ASN23 |
| D | SER27 |
| D | TYR43 |
| D | TYR54 |
| D | TRP79 |
| D | ARG84 |
| D | THR90 |
| D | TRP92 |
| D | TRP108 |
| D | LEU110 |
| D | ASP128 |
Functional Information from PROSITE/UniProt
| site_id | PS00577 |
| Number of Residues | 15 |
| Details | AVIDIN_1 Avidin-like domain signature. NawKStlVGhDtFTK |
| 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 | |
| A | TYR54 | |
| A | TRP92 | |
| A | TRP108 | |
| A | TRP120 | |
| B | TYR43 | |
| B | TYR54 | |
| B | TRP92 | |
| B | TRP108 | |
| B | TRP120 | |
| C | TYR43 | |
| C | TYR54 | |
| C | TRP92 | |
| C | TRP108 | |
| C | TRP120 | |
| D | TYR43 | |
| D | TYR54 | |
| D | TRP92 | |
| D | TRP108 | |
| D | TRP120 | |
