› 4ri2

X-ray diffraction
2.35Å resolution

Crystal structure of the photoprotective protein PsbS from spinach

Released:
DOI: 10.2210/pdb4ri2/pdb
PDB entry 4ri2 coloured by chain, front view.
PDB entry 4ri2 coloured by chain, side view.
PDB entry 4ri2 coloured by chain, top view.
Source organism: Spinacia oleracea
Primary publication:
Crystal structures of the PsbS protein essential for photoprotection in plants.
Fan M, Li M, Liu Z, Cao P, Pan X, Zhang H, Zhao X, Zhang J, Chang W
Nat Struct Mol Biol 22 729-35 (2015)
PMID: 26258636

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-169664 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Photosystem II 22 kDa protein, chloroplastic Chains: A, B
Molecule details ›
Chains: A, B
Length: 212 amino acids
Theoretical weight: 22.55 KDa
Source organism: Spinacia oleracea
UniProt:
  • Canonical: Q02060 (Residues: 63-274; Coverage: 77%)
Gene name: PSBS
Sequence domains: Chlorophyll A-B binding protein

Ligands and Environments

3 bound ligands:
Ligand BNG 4 x BNG
Ligand CLA 1 x CLA
Ligand HG 1 x HG
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: PHOTON FACTORY BEAMLINE AR-NE3A
Spacegroup: P212121
Unit cell:
a: 71.999Å b: 77.537Å c: 93.184Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.233 0.23 0.266

Quick links

Citations

15 review citations

Nonphotochemical Chlorophyll Fluorescence Quenching: Mechanism and Effectiveness in Protecting Plants from Photodamage.
Ruban AV. (2016)
14 more

8 mentions without citation

Macromolecular conformational changes in photosystem II: interaction between structure and function.
Terentyev VV. (2022)
7 more