3v58

X-ray diffraction
1.85Å resolution

Crystal Structure of the B-phycoerythrin from the red algae Porphyridium Cruentum at pH5

Released:

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero hexamer (preferred)
PDBe Complex ID:
PDB-CPX-145813 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
B-phycoerythrin alpha chain Chains: A, C
Molecule details ›
Chains: A, C
Length: 164 amino acids
Theoretical weight: 17.82 KDa
Source organism: Porphyridium purpureum
UniProt:
  • Canonical: P11392 (Residues: 1-164; Coverage: 100%)
Gene name: cpeA
Sequence domains: Phycobilisome protein
Structure domains: Phycocyanins
B-phycoerythrin beta chain Chains: B, D
Molecule details ›
Chains: B, D
Length: 177 amino acids
Theoretical weight: 18.58 KDa
Source organism: Porphyridium purpureum
UniProt:
  • Canonical: P11393 (Residues: 1-177; Coverage: 100%)
Gene name: cpeB
Sequence domains: Phycobilisome protein
Structure domains: Phycocyanins

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-4
Spacegroup: R3
Unit cell:
a: 187Å b: 187Å c: 59.33Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.18 0.178 0.221