1N4A
The Ligand Bound Structure of E.coli BtuF, the Periplasmic Binding Protein for Vitamin B12
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A, B | Vitamin B12 transport protein btuF | polymer | 252 | 28140.7 | 2 | UniProt (P37028) Pfam (PF01497) In PDB | Escherichia coli | |
2 | A, B | CYANOCOBALAMIN | non-polymer | 1356.4 | 2 | Chemie (CNC) | |||
3 | water | water | 18.0 | 549 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 244 (UniProt: P37028)
PDB | External Database | Details |
---|---|---|
Mse 47 | Met 69 | modified residue |
Mse 83 | Met 105 | modified residue |
Leu 245 | - | expression tag |
Glu 246 | - | expression tag |
His 247 | - | expression tag |
His 248 | - | expression tag |
His 249 | - | expression tag |
His 250 | - | expression tag |
His 251 | - | expression tag |
His 252 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 2 |
Total formula weight | 56281.4 | |
Non-Polymers* | Number of molecules | 2 |
Total formula weight | 2712.7 | |
All* | Total formula weight | 58994.1 |