3gec

X-ray diffraction
4Å resolution

Crystal structure of a tandem PAS domain fragment of Drosophila PERIOD

Released:

Function and Biology Details

Biochemical function:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-139686 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Period circadian protein Chain: A
Molecule details ›
Chain: A
Length: 312 amino acids
Theoretical weight: 34.94 KDa
Source organism: Drosophila melanogaster
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P07663 (Residues: 232-538; Coverage: 25%)
Gene names: CG2647, per
Sequence domains:
Structure domains: PAS domain

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: P3221
Unit cell:
a: 114.95Å b: 114.95Å c: 85.7Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.247 0.244 0.312
Expression system: Escherichia coli BL21(DE3)