PDBe 1xg0

X-ray diffraction
0.97Å resolution

High resolution crystal structure of phycoerythrin 545 from the marine cryptophyte rhodomonas CS24

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
B-phycoerythrin beta chain Chains: C, D
Molecule details ›
Chains: C, D
Length: 177 amino acids
Theoretical weight: 18.54 KDa
Source organism: Rhodomonas sp. CS24
UniProt:
  • Canonical: P27198 (Residues: 1-177; Coverage: 100%)
Gene name: cpeB
Sequence domains: Phycobilisome protein
Structure domains: Phycocyanins
Phycoerythrin alpha-2 chain, chloroplastic Chain: B
Molecule details ›
Chain: B
Length: 67 amino acids
Theoretical weight: 7.03 KDa
Source organism: Rhodomonas sp. CS24
UniProt:
  • Canonical: P30943 (Residues: 38-104; Coverage: 64%)
Gene name: cpeA2
Sequence domains: Phycoerythrin, alpha/beta chain
Structure domains: Cryptophytan Phycoerythrin (Alpha-1 Chain); Chain A
Phycoerythrin alpha-3 chain, chloroplastic Chain: A
Molecule details ›
Chain: A
Length: 76 amino acids
Theoretical weight: 8.14 KDa
Source organism: Rhodomonas sp. CS24
UniProt:
  • Canonical: Q00433 (Residues: 53-128; Coverage: 59%)
Gene name: cpeA3
Sequence domains: Phycoerythrin, alpha/beta chain
Structure domains: Cryptophytan Phycoerythrin (Alpha-1 Chain); Chain A

Ligands and Environments


2 modified residues:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X8C
Spacegroup: P212121
Unit cell:
a: 62.98Å b: 82.764Å c: 89.477Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.107 0.107 0.126