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crystal structure of KaiB from Synechocystis sp.

X-ray diffraction
1.9Å resolution
PDB entry 1wwj coloured by chain, front view.
PDB entry 1wwj coloured by chain, side view.
PDB entry 1wwj coloured by chain, top view.
Source organism: Synechocystis sp.
Assembly composition:
homo tetramer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Circadian clock oscillator protein KaiB1
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Multimeric state: homo tetramer
Accessible surface area: 17598.2 Å2
Buried surface area: 11350.11 Å2
Dissociation area: 4,071.35 Å2
Dissociation energy (ΔGdiss): 15.97 kcal/mol
Dissociation entropy (TΔSdiss): 34.7 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-159943

Macromolecules

Circadian clock oscillator protein KaiB1
Chains: A, B, C, D
Length: 105 amino acids
Theoretical weight: 11.95 KDa
Source organism: Synechocystis sp.
Expression system: Escherichia coli
UniProt:
  • Canonical: P74645 (Residues: 1-105; Coverage: 100%)
Gene names: kaiB1, slr0757
Pfam: KaiB domain
InterPro:
CATH: Glutaredoxin
Circadian clock oscillator protein KaiB1 in PDB entry 1wwj, assembly 1, front view.
Circadian clock oscillator protein KaiB1 in PDB entry 1wwj, assembly 1, side view.
Circadian clock oscillator protein KaiB1 in PDB entry 1wwj, assembly 1, top view.
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