› 6xwk

X-ray diffraction
1.17Å resolution

Crystal structure of Phormidium rubidum phycocyanin

Released:
DOI: 10.2210/pdb6xwk/pdb
PDB entry 6xwk coloured by chain, front view.
PDB entry 6xwk coloured by chain, side view.
PDB entry 6xwk coloured by chain, top view.
Source organism: Phormidium rubidum A09DM
Primary publication:
Revisiting high-resolution crystal structure of Phormidium rubidum phycocyanin.
Sonani RR, Roszak AW, Liu H, Gross ML, Blankenship RE, Madamwar D, Cogdell RJ
Photosynth Res 144 349-360 (2020)
PMID: 32303893

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero hexamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-167804 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Phycocyanin alpha subunit Chain: AAA
Molecule details ›
Chain: AAA
Length: 162 amino acids
Theoretical weight: 17.32 KDa
Source organism: Phormidium rubidum A09DM
Phycocyanin beta subunit Chain: BBB
Molecule details ›
Chain: BBB
Length: 172 amino acids
Theoretical weight: 18.15 KDa
Source organism: Phormidium rubidum A09DM

Ligands and Environments

5 bound ligands:
Ligand CYC 3 x CYC
Ligand PEG 1 x PEG
Ligand EDO 6 x EDO
Ligand IMD 4 x IMD
Ligand PGE 1 x PGE
1 modified residue:
Ligand MEN 1 x MEN

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I03
Spacegroup: P63
Unit cell:
a: 106.32Å b: 106.32Å c: 58.67Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.12 0.119 0.145

Quick links

Citations

2 review citations

Exploring the structural aspects and therapeutic perspectives of cyanobacterial phycobiliproteins.
Patel et al. (2022)
1 more

2 mentions without citation

Phycobiliproteins: Structural aspects, functional characteristics, and biotechnological perspectives.
Dagnino-Leone et al. (2022)
1 more