3lw5

X-ray diffraction
3.3Å resolution

Improved model of plant photosystem I

Released:
Model geometry
Fit model/data
Source organisms:
Primary publication:
Structure determination and improved model of plant photosystem I.
J Biol Chem 285 3478-86 (2010)
PMID: 19923216

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero octadecamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-122784 (preferred)
Entry contents:
18 distinct polypeptide molecules
Macromolecules (18 distinct):
Photosystem I P700 chlorophyll a apoprotein A1 Chain: A
Molecule details ›
Chain: A
Length: 738 amino acids
Theoretical weight: 82.02 KDa
Source organism: Pisum sativum
UniProt:
  • Canonical: P05310 (Residues: 21-758; Coverage: 97%)
Gene names: psaA, psaA1
Sequence domains: Photosystem I psaA/psaB protein
Structure domains: Photosystem I PsaA/PsaB
Photosystem I P700 chlorophyll a apoprotein A2 Chain: B
Molecule details ›
Chain: B
Length: 733 amino acids
Theoretical weight: 82.36 KDa
Source organism: Pisum sativum
UniProt:
  • Canonical: P05311 (Residues: 2-734; Coverage: 100%)
Gene names: psaA2, psaB
Sequence domains: Photosystem I psaA/psaB protein
Structure domains: Photosystem I PsaA/PsaB
Photosystem I iron-sulfur center Chain: C
Photosystem I reaction center subunit II, chloroplastic Chain: D
Photosystem I reaction center subunit IV Chain: E
Photosystem I reaction center subunit III, chloroplastic Chain: F
Photosystem I reaction center subunit V Chain: G
Photosystem I reaction center subunit VI Chain: H
Photosystem I reaction center subunit VIII Chain: I
Photosystem I reaction center subunit IX Chain: J
PSI-K Chain: K
PSI subunit V Chain: L
Photosystem I-N subunit Chain: N
CHAIN R Chain: R
Chlorophyll a-b binding protein, chloroplastic Chain: 1
Chlorophyll a-b binding protein, chloroplastic Chain: 2
Chlorophyll a-b binding protein 3, chloroplastic Chain: 3
Chlorophyll a-b binding protein P4, chloroplastic Chain: 4

Ligands and Environments

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID23-2
Spacegroup: P21
Unit cell:
a: 120.655Å b: 189.086Å c: 129.388Å
α: 90° β: 91.24° γ: 90°
R-values:
R R work R free
0.351 0.349 0.383