3S1A
Crystal structure of the phosphorylation-site double mutant S431E/T432E of the KaiC circadian clock protein
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A, F | Circadian clock protein kinase kaiC | polymer | 525 | 59051.7 | 2 | UniProt (Q79PF4) Pfam (PF06745) In PDB | Synechococcus elongatus | |
2 | B, C, D, E | Circadian clock protein kinase kaiC | polymer | 525 | 58971.7 | 4 | UniProt (Q79PF4) Pfam (PF06745) In PDB | Synechococcus elongatus | |
3 | E, A, F, B, C... | ADENOSINE-5'-TRIPHOSPHATE | non-polymer | 507.2 | 12 | Chemie (ATP) | |||
4 | D, E, A, F, B... | MAGNESIUM ION | non-polymer | 24.3 | 21 | Chemie (MG) | |||
5 | water | water | 18.0 | 81 | Chemie (HOH) |
Sequence modifications
A, F: 1 - 519 (UniProt: Q79PF4)
B, C, D, E: 1 - 519 (UniProt: Q79PF4)
PDB | External Database | Details |
---|---|---|
Glu 431 | Ser 431 | engineered mutation |
Glu 432 | Thr 432 | engineered mutation |
His 520 | - | expression tag |
His 521 | - | expression tag |
His 522 | - | expression tag |
His 523 | - | expression tag |
His 524 | - | expression tag |
His 525 | - | expression tag |
PDB | External Database | Details |
---|---|---|
Glu 431 | Ser 431 | engineered mutation |
Glu 432 | Thr 432 | engineered mutation |
His 520 | - | expression tag |
His 521 | - | expression tag |
His 522 | - | expression tag |
His 523 | - | expression tag |
His 524 | - | expression tag |
His 525 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 6 |
Total formula weight | 353990.2 | |
Non-Polymers* | Number of molecules | 33 |
Total formula weight | 6596.6 | |
All* | Total formula weight | 360586.8 |