7OQ1
NaK S-ELM mutant with Na+ and K+
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B | Potassium channel protein | polymer | 96 | 10777.8 | 2 | UniProt (Q81HW2) Pfam (PF07885) In PDB | Bacillus cereus (strain ATCC 14579 / DSM 31 / JCM 2152 / NBRC 15305 / NCIMB 9373 / NRRL B-3711) | |
| 2 | A, B | (4S)-2-METHYL-2,4-PENTANEDIOL | non-polymer | 118.2 | 7 | Chemie (MPD) | |||
| 3 | A, B | POTASSIUM ION | non-polymer | 39.1 | 3 | Chemie (K) | |||
| 4 | A, B | ACETATE ION | non-polymer | 59.0 | 12 | Chemie (ACT) | |||
| 5 | A | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) | |||
| 6 | A | (4R)-2-METHYLPENTANE-2,4-DIOL | non-polymer | 118.2 | 1 | Chemie (MRD) | |||
| 7 | B | SODIUM ION | non-polymer | 23.0 | 2 | Chemie (NA) | |||
| 8 | water | water | 18.0 | 42 | Chemie (HOH) |
Sequence modifications
A, B: 19 - 109 (UniProt: Q81HW2)
| PDB | External Database | Details |
|---|---|---|
| Met 18 | - | initiating methionine |
| Ser 66 | Asp 66 | engineered mutation |
| - | Gly 67 | deletion |
| Glu 67 | Asn 68 | engineered mutation |
| Leu 68 | Phe 69 | engineered mutation |
| Met 69 | Ser 70 | engineered mutation |
| Leu 110 | - | expression tag |
| Val 111 | - | expression tag |
| Pro 112 | - | expression tag |
| Arg 113 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 21555.6 | |
| Non-Polymers* | Number of molecules | 26 |
| Total formula weight | 1852.6 | |
| All* | Total formula weight | 23408.2 |
