5BUT
Crystal structure of inactive conformation of KtrAB K+ transporter
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C, D (A, C, E, G) | Ktr system potassium uptake protein A,Ktr system potassium uptake protein A | polymer | 288 | 32038.7 | 4 | UniProt (O32080) Pfam (PF02254) | Bacillus subtilis | K(+)-uptake protein KtrA,K(+)-uptake protein KtrA |
| 2 | E, F, G, H (I, J, K, L) | Ktr system potassium uptake protein B | polymer | 445 | 48158.0 | 4 | UniProt (O32081) Pfam (PF02386) | Bacillus subtilis | K(+)-uptake protein KtrB |
| 3 | I, J, K, L (I, J, K, L) | POTASSIUM ION | non-polymer | 39.1 | 4 | Chemie (K) |
Sequence modifications
A, C, E, G: 1 - 144 (UniProt: O32080)
A, C, E, G: 149 - 282 (UniProt: O32080)
I, J, K, L: 1 - 445 (UniProt: O32081)
| PDB | External Database | Details |
|---|---|---|
| Leu 283 | - | expression tag |
| Glu 284 | - | expression tag |
| Leu 285 | - | expression tag |
| Val 286 | - | expression tag |
| Pro 287 | - | expression tag |
| Arg 288 | - | expression tag |
| Val 22 | Cys 22 | engineered mutation |
| PDB | External Database | Details |
|---|---|---|
| Leu 145 | - | linker |
| Glu 146 | - | linker |
| Gly 147 | - | linker |
| Ser 148 | - | linker |
| PDB | External Database | Details |
|---|---|---|
| Ala 103 | Gly 103 | conflict |
| Ala 104 | Lys 104 | conflict |
| Ala 105 | Lys 105 | conflict |
| Gln 218 | Asn 218 | conflict |
| Ala 229 | Lys 229 | conflict |
| Ala 261 | His 261 | conflict |
| Ala 262 | Ile 262 | conflict |
| Ala 429 | Lys 429 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 8 |
| Total formula weight | 320787.0 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 156.4 | |
| All* | Total formula weight | 320943.4 |
