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Crystal Structure Analysis of the double mutant Rhodobacter Sphaeroides bc1 complex

X-ray diffraction
3.2Å resolution
PDB entry 2fyn coloured by chain, front view.
PDB entry 2fyn coloured by chain, side view.
PDB entry 2fyn coloured by chain, top view.
Source organism: Cereibacter sphaeroides
Assembly composition:
hetero hexamer (preferred)
Entry contents: 3 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero hexamer
Accessible surface area: 69664.35 Å2
Buried surface area: 32342.84 Å2
Dissociation area: 3,383.85 Å2
Dissociation energy (ΔGdiss): 56.24 kcal/mol
Dissociation entropy (TΔSdiss): 16.68 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-169747
Assembly 2
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Multimeric state: hetero hexamer
Accessible surface area: 69934.22 Å2
Buried surface area: 32287.17 Å2
Dissociation area: 3,381.82 Å2
Dissociation energy (ΔGdiss): 57.4 kcal/mol
Dissociation entropy (TΔSdiss): 16.68 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-169747
Assembly 3
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Multimeric state: hetero hexamer
Accessible surface area: 69868.84 Å2
Buried surface area: 32470.9 Å2
Dissociation area: 5,015.52 Å2
Dissociation energy (ΔGdiss): 57.9 kcal/mol
Dissociation entropy (TΔSdiss): 29.47 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-169747

Macromolecules

Cytochrome b
Chains: A, D, G, J, M, P
Length: 445 amino acids
Theoretical weight: 50.16 KDa
Source organism: Cereibacter sphaeroides
Expression system: Cereibacter sphaeroides
UniProt:
  • Canonical: Q02761 (Residues: 1-445; Coverage: 100%)
Gene names: fbcB, petB
Pfam:
InterPro:
CATH: Cytochrome Bc1 Complex; Chain C
Cytochrome b in PDB entry 2fyn, assembly 1, front view.
Cytochrome b in PDB entry 2fyn, assembly 1, side view.
Cytochrome b in PDB entry 2fyn, assembly 1, top view.
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Cytochrome c1
Chains: B, E, H, K, N, Q
Length: 269 amino acids
Theoretical weight: 29.37 KDa
Source organism: Cereibacter sphaeroides
Expression system: Cereibacter sphaeroides
UniProt:
  • Canonical: Q02760 (Residues: 23-285; Coverage: 100%)
Gene names: fbcC, petC
Pfam: Cytochrome C1 family
InterPro:
CATH:
Cytochrome c1 in PDB entry 2fyn, assembly 1, front view.
Cytochrome c1 in PDB entry 2fyn, assembly 1, side view.
Cytochrome c1 in PDB entry 2fyn, assembly 1, top view.
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Ubiquinol-cytochrome c reductase iron-sulfur subunit
Chains: C, F, I, L, O, R
Length: 187 amino acids
Theoretical weight: 19.92 KDa
Source organism: Cereibacter sphaeroides
Expression system: Cereibacter sphaeroides
UniProt:
  • Canonical: Q02762 (Residues: 1-187; Coverage: 100%)
Gene names: fbcF, petA
Pfam:
InterPro:
CATH:
Ubiquinol-cytochrome c reductase iron-sulfur subunit in PDB entry 2fyn, assembly 1, front view.
Ubiquinol-cytochrome c reductase iron-sulfur subunit in PDB entry 2fyn, assembly 1, side view.
Ubiquinol-cytochrome c reductase iron-sulfur subunit in PDB entry 2fyn, assembly 1, top view.
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