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PucA-LH2 complex from Rps. palustris

Electron Microscopy
2.7Å resolution
PDB entry 7zcu coloured by chain, front view.
PDB entry 7zcu coloured by chain, side view.
PDB entry 7zcu coloured by chain, top view.
Source organism: Rhodopseudomonas palustris ATCC 17001
Assembly composition:
hetero nonadecamer (preferred)
Entry contents: 3 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero nonadecamer
Accessible surface area: 38972.94 Å2
Buried surface area: 105151.71 Å2
Dissociation area: 5,392.7 Å2
Dissociation energy (ΔGdiss): 91.48 kcal/mol
Dissociation entropy (TΔSdiss): 13.26 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-216731

Macromolecules

Light-harvesting protein B-800-850 alpha chain A
Chains: A, C, E, G, I, K, M, O, Q
Length: 59 amino acids
Theoretical weight: 6.44 KDa
Source organism: Rhodopseudomonas palustris ATCC 17001
UniProt:
  • Canonical: P35101 (Residues: 1-59; Coverage: 100%)
Gene names: RPA2653, pucAA
Pfam: Antenna complex alpha/beta subunit
InterPro:
Light-harvesting protein B-800-850 alpha chain A in PDB entry 7zcu, assembly 1, front view.
Light-harvesting protein B-800-850 alpha chain A in PDB entry 7zcu, assembly 1, side view.
Light-harvesting protein B-800-850 alpha chain A in PDB entry 7zcu, assembly 1, top view.
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Light-harvesting protein B-800-850 beta chain A
Chains: B, D, F, H, J, L, N, P, R
Length: 47 amino acids
Theoretical weight: 5.29 KDa
Source organism: Rhodopseudomonas palustris ATCC 17001
UniProt:
  • Canonical: P35106 (Residues: 1-47; Coverage: 100%)
Gene names: RPA2654, pucBA
Pfam: Antenna complex alpha/beta subunit
InterPro:
Light-harvesting protein B-800-850 beta chain A in PDB entry 7zcu, assembly 1, front view.
Light-harvesting protein B-800-850 beta chain A in PDB entry 7zcu, assembly 1, side view.
Light-harvesting protein B-800-850 beta chain A in PDB entry 7zcu, assembly 1, top view.
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PucA-LH2-gamma
Chain: S
Length: 97 amino acids
Theoretical weight: 10.85 KDa
Source organism: Rhodopseudomonas palustris ATCC 17001
UniProt:
  • Canonical: Q6N9P5 (Residues: 1-97; Coverage: 100%)
Gene names: RPA1495, TX73_007685
PucA-LH2-gamma in PDB entry 7zcu, assembly 1, front view.
PucA-LH2-gamma in PDB entry 7zcu, assembly 1, side view.
PucA-LH2-gamma in PDB entry 7zcu, assembly 1, top view.
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