› 1qgw

X-ray diffraction
1.63Å resolution

CRYSTAL STRUCTURE OF PHYCOERYTHRIN 545 FROM THE MARINE CRYPTOPHYTE RHODOMONAS CS24

Released:
DOI: 10.2210/pdb1qgw/pdb
PDB entry 1qgw coloured by chain, front view.
PDB entry 1qgw coloured by chain, side view.
PDB entry 1qgw coloured by chain, top view.
Source organism: Rhodomonas sp. CS24
Primary publication:
Evolution of a light-harvesting protein by addition of new subunits and rearrangement of conserved elements: crystal structure of a cryptophyte phycoerythrin at 1.63-A resolution.
Wilk KE, Harrop SJ, Jankova L, Edler D, Keenan G, Sharples F, Hiller RG, Curmi PM
Proc Natl Acad Sci U S A 96 8901-6 (1999)
PMID: 10430868

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
Cellular component:
Sequence domains:
Structure domains:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-150949 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
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: Phycoerythrin alpha chain
Phycoerythrin alpha-2 chain, chloroplastic Chain: B
Molecule details ›
Chain: B
Length: 67 amino acids
Theoretical weight: 7.04 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: Phycoerythrin alpha chain
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

Ligands and Environments

4 bound ligands:
Ligand MG 2 x MG
Ligand DBV 2 x DBV
Ligand CL 1 x CL
Ligand PEB 6 x PEB
2 modified residues:
Ligand LYZ 2 x LYZ
Ligand MEN 2 x MEN

Experiments and Validation Details

Entry percentile scores
X-ray source: ENRAF-NONIUS FR591
Spacegroup: P212121
Unit cell:
a: 63.03Å b: 82.63Å c: 89.55Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.149 0.149 0.188

Quick links

Citations

5 review citations

Elucidation of the molecular structures of components of the phycobilisome: reconstructing a giant.
Adir N. (2005)
4 more

9 mentions without citation

Evolution of a light-harvesting protein by addition of new subunits and rearrangement of conserved elements: crystal structure of a cryptophyte phycoerythrin at 1.63-A resolution.
Wilk et al. (1999)
8 more