2QI9
ABC-transporter BtuCD in complex with its periplasmic binding protein BtuF
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 import system permease protein btuC | polymer | 326 | 35375.5 | 2 | UniProt (P06609) Pfam (PF01032) In PDB | Escherichia coli | |
2 | C, D | Vitamin B12 import ATP-binding protein btuD | polymer | 249 | 27520.2 | 2 | UniProt (P06611) Pfam (PF00005) In PDB | Escherichia coli | Vitamin B12-transporting ATPase |
3 | F | Vitamin B12-binding protein btuF | polymer | 245 | 27140.6 | 1 | UniProt (P37028) Pfam (PF01497) In PDB | Escherichia coli | |
4 | C, D | PHOSPHATE ION | non-polymer | 95.0 | 2 | Chemie (PO4) | |||
5 | C, D | SULFATE ION | non-polymer | 96.1 | 6 | Chemie (SO4) | |||
6 | C, D | PENTAETHYLENE GLYCOL | non-polymer | 238.3 | 2 | Chemie (1PE) | |||
7 | C, D | DI(HYDROXYETHYL)ETHER | non-polymer | 106.1 | 4 | Chemie (PEG) | |||
8 | water | water | 18.0 | 16 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 326 (UniProt: P06609)
C, D: 1 - 249 (UniProt: P06611)
PDB | External Database | Details |
---|---|---|
Ser 18 | Cys 18 | engineered mutation |
Ser 32 | Cys 32 | engineered mutation |
Ser 120 | Cys 120 | engineered mutation |
Ser 156 | Cys 156 | engineered mutation |
Ser 205 | Cys 205 | engineered mutation |
Ser 206 | Cys 206 | engineered mutation |
Ser 267 | Cys 267 | engineered mutation |
PDB | External Database | Details |
---|---|---|
Ser 180 | Cys 180 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 5 |
Total formula weight | 152931.9 | |
Non-Polymers* | Number of molecules | 14 |
Total formula weight | 1667.4 | |
All* | Total formula weight | 154599.3 |