4PDM
Crystal Structure of K+ selective NaK mutant in rubidium
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 | 97 | 10771.7 | 2 | UniProt (Q81HW2) Pfam (PF07885) In PDB | Bacillus cereus | |
2 | A, B | RUBIDIUM ION | non-polymer | 85.5 | 6 | Chemie (RB) | |||
3 | A, B | (4S)-2-METHYL-2,4-PENTANEDIOL | non-polymer | 118.2 | 3 | Chemie (MPD) | |||
4 | water | water | 18.0 | 79 | Chemie (HOH) |
Sequence modifications
A, B: 20 - 110 (UniProt: Q81HW2)
PDB | External Database | Details |
---|---|---|
Met 18 | - | initiating methionine |
Ala 19 | - | expression tag |
Tyr 66 | Asp 66 | engineered mutation |
Asp 68 | Asn 68 | engineered mutation |
Leu 111 | - | expression tag |
Val 112 | - | expression tag |
Pro 113 | - | expression tag |
Arg 114 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 2 |
Total formula weight | 21543.3 | |
Non-Polymers* | Number of molecules | 9 |
Total formula weight | 867.3 | |
All* | Total formula weight | 22410.7 |