Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0015889 | biological_process | cobalamin transport |
| A | 0031419 | molecular_function | cobalamin binding |
| A | 0042597 | cellular_component | periplasmic space |
| B | 0015889 | biological_process | cobalamin transport |
| B | 0031419 | molecular_function | cobalamin binding |
| B | 0042597 | cellular_component | periplasmic space |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 21 |
| Details | binding site for residue CBY A 301 |
| Chain | Residue |
| A | PRO31 |
| A | SER241 |
| A | ASP242 |
| A | GLU245 |
| A | ARG246 |
| A | CYN302 |
| A | HOH408 |
| A | HOH410 |
| A | HOH421 |
| A | HOH459 |
| A | HOH474 |
| A | ALA32 |
| A | HOH528 |
| A | HOH541 |
| A | TYR50 |
| A | TRP66 |
| A | TRP85 |
| A | GLY87 |
| A | PHE162 |
| A | PHE168 |
| A | TRP196 |
| site_id | AC2 |
| Number of Residues | 3 |
| Details | binding site for residue CYN A 302 |
| Chain | Residue |
| A | TRP66 |
| A | TRP85 |
| A | CBY301 |
| site_id | AC3 |
| Number of Residues | 8 |
| Details | binding site for residue GOL A 303 |
| Chain | Residue |
| A | GLN121 |
| A | HOH406 |
| A | HOH441 |
| A | HOH475 |
| A | HOH549 |
| B | TRP106 |
| B | GOL304 |
| B | HOH402 |
| site_id | AC4 |
| Number of Residues | 6 |
| Details | binding site for residue GOL A 304 |
| Chain | Residue |
| A | VAL194 |
| A | PRO197 |
| A | GLN198 |
| A | HOH418 |
| B | LYS131 |
| B | ARG193 |
| site_id | AC5 |
| Number of Residues | 19 |
| Details | binding site for residue CBY B 301 |
| Chain | Residue |
| B | PRO31 |
| B | ALA32 |
| B | TYR50 |
| B | TRP66 |
| B | TRP85 |
| B | GLY87 |
| B | PHE162 |
| B | PHE168 |
| B | TRP196 |
| B | ASP242 |
| B | GLU245 |
| B | ARG246 |
| B | CYN302 |
| B | CYN303 |
| B | HOH411 |
| B | HOH433 |
| B | HOH458 |
| B | HOH481 |
| B | HOH487 |
| site_id | AC6 |
| Number of Residues | 4 |
| Details | binding site for residue CYN B 302 |
| Chain | Residue |
| B | TRP66 |
| B | TRP85 |
| B | CBY301 |
| B | CYN303 |
| site_id | AC7 |
| Number of Residues | 5 |
| Details | binding site for residue CYN B 303 |
| Chain | Residue |
| B | GLU245 |
| B | CBY301 |
| B | CYN302 |
| B | HOH487 |
| B | HOH544 |
| site_id | AC8 |
| Number of Residues | 8 |
| Details | binding site for residue GOL B 304 |
| Chain | Residue |
| A | GOL303 |
| A | HOH441 |
| B | MET105 |
| B | TRP106 |
| B | GLN121 |
| B | HOH402 |
| B | HOH527 |
| B | HOH567 |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | TYR50 | |
| B | TYR50 | |
| Chain | Residue | Details |
| A | ASP242 | |
| B | ASP242 | |
| Chain | Residue | Details |
| A | GLU72 | |
| A | GLU202 | |
| B | GLU72 | |
| B | GLU202 | |
