Structure analysis

CRYSTALLOGRAPHIC REFINEMENT AT 2.3 ANGSTROMS RESOLUTION AND REFINED MODEL OF THE PHOTOSYNTHETIC REACTION CENTER FROM RHODOPSEUDOMONAS VIRIDIS

X-ray diffraction
2.3Å resolution
Source organism: Blastochloris viridis
Assemblies composition:
hetero tetramer (preferred)
hetero octamer
Entry contents: 4 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero tetramer
Accessible surface area: 42339.16 Å2
Buried surface area: 49138.12 Å2
Dissociation area: 4,622.6 Å2
Dissociation energy (ΔGdiss): 61.6 kcal/mol
Dissociation entropy (TΔSdiss): 15.15 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-138851
Assembly 2
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Multimeric state: hetero octamer
Accessible surface area: 82673.09 Å2
Buried surface area: 100327.27 Å2
Dissociation area: 1,140.89 Å2
Dissociation energy (ΔGdiss): 32.73 kcal/mol
Dissociation entropy (TΔSdiss): 18.5 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-138852

Macromolecules

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Chain: L
Length: 273 amino acids
Theoretical weight: 30.47 KDa
Source organism: Blastochloris viridis
Expression system: Not provided
UniProt:
  • Canonical: P06009 (Residues: 2-274; Coverage: 100%)
Gene name: pufL
Pfam: Photosynthetic reaction centre protein
InterPro:
CATH: Photosystem II protein D1-like
SCOP: Bacterial photosystem II reaction centre, L and M subunits

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Chain: M
Length: 323 amino acids
Theoretical weight: 35.93 KDa
Source organism: Blastochloris viridis
Expression system: Not provided
UniProt:
  • Canonical: P06010 (Residues: 2-324; Coverage: 100%)
Gene name: pufM
Pfam: Photosynthetic reaction centre protein
InterPro:
CATH: Photosystem II protein D1-like
SCOP: Bacterial photosystem II reaction centre, L and M subunits

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