PDBe 4q70

X-ray diffraction
1.85Å resolution

Light Harvesting Protein Phycocyanin in high resolution using a femtosecond X-Ray laser

Released:
Entry authors: Fromme R, Roy-Chowdhury S, Basu S, Yoon C, Fromme P

Function and Biology Details

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

Structure analysis Details

Assemblies composition:
hetero hexamer (preferred)
hetero 12-mer
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
C-phycocyanin beta chain Chain: B
Molecule details ›
Chain: B
Length: 172 amino acids
Theoretical weight: 18.22 KDa
Source organism: Thermosynechococcus elongatus BP-1
UniProt:
  • Canonical: P50033 (Residues: 1-172; Coverage: 100%)
Gene names: cpcB, tlr1957
Sequence domains: Phycobilisome protein
C-phycocyanin alpha chain Chain: A
Molecule details ›
Chain: A
Length: 162 amino acids
Theoretical weight: 17.46 KDa
Source organism: Thermosynechococcus elongatus BP-1
UniProt:
  • Canonical: P50032 (Residues: 1-162; Coverage: 100%)
Gene names: cpcA, tlr1958
Sequence domains: Phycobilisome protein

Ligands and Environments

1 bound ligand:

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SLAC LCLS BEAMLINE CXI
Spacegroup: R32
Unit cell:
a: 192.8Å b: 192.8Å c: 62.5Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.208 0.204 0.275