5jwq

X-ray diffraction
3.87Å resolution

Crystal structure of KaiC S431E in complex with foldswitch-stabilized KaiB from Thermosynechococcus elongatus

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dodecamer (preferred)
PDBe Complex ID:
PDB-CPX-181293 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Circadian clock oscillator protein KaiC Chains: A, C
Molecule details ›
Chains: A, C
Length: 526 amino acids
Theoretical weight: 58.64 KDa
Source organism: Thermosynechococcus vestitus BP-1
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q79V60 (Residues: 1-518; Coverage: 100%)
Gene names: kaiC, tlr0483
Sequence domains: KaiC
Circadian clock oscillator protein KaiB Chains: B, D
Molecule details ›
Chains: B, D
Length: 99 amino acids
Theoretical weight: 10.84 KDa
Source organism: Thermosynechococcus vestitus BP-1
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q79V61 (Residues: 1-99; Coverage: 92%)
Gene names: kaiB, tlr0482
Sequence domains: KaiB domain
Structure domains: Glutaredoxin

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 23-ID-B
Spacegroup: P213
Unit cell:
a: 155.92Å b: 155.92Å c: 155.92Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.328 0.327 0.345
Expression system: Escherichia coli BL21(DE3)