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Polysulfide reductase with bound quinone (UQ1)

X-ray diffraction
3.1Å resolution
PDB entry 2vpx coloured by chain, front view.
PDB entry 2vpx coloured by chain, side view.
PDB entry 2vpx coloured by chain, top view.
Source organism: Thermus thermophilus HB27
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: 76396.66 Å2
Buried surface area: 27348.25 Å2
Dissociation area: 1,507.59 Å2
Dissociation energy (ΔGdiss): 7.91 kcal/mol
Dissociation entropy (TΔSdiss): 16.76 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-180887

Macromolecules

4Fe-4S Mo/W bis-MGD-type domain-containing protein
Chains: A, E
Length: 765 amino acids
Theoretical weight: 86.74 KDa
Source organism: Thermus thermophilus HB27
UniProt:
  • Canonical: Q72LA4 (Residues: 1-765; Coverage: 100%)
Gene name: TT_C0155
Pfam:
InterPro:
CATH:
4Fe-4S Mo/W bis-MGD-type domain-containing protein in PDB entry 2vpx, assembly 1, front view.
4Fe-4S Mo/W bis-MGD-type domain-containing protein in PDB entry 2vpx, assembly 1, side view.
4Fe-4S Mo/W bis-MGD-type domain-containing protein in PDB entry 2vpx, assembly 1, top view.
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4Fe-4S ferredoxin-type domain-containing protein
Chains: B, F
Length: 195 amino acids
Theoretical weight: 21.41 KDa
Source organism: Thermus thermophilus HB27
UniProt:
  • Canonical: Q72LA5 (Residues: 1-195; Coverage: 100%)
Gene names: TT_C0154, nrfC
Pfam:
InterPro:
CATH: Alpha-Beta Plaits
4Fe-4S ferredoxin-type domain-containing protein in PDB entry 2vpx, assembly 1, front view.
4Fe-4S ferredoxin-type domain-containing protein in PDB entry 2vpx, assembly 1, side view.
4Fe-4S ferredoxin-type domain-containing protein in PDB entry 2vpx, assembly 1, top view.
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Hypothetical membrane spanning protein
Chains: C, G
Length: 253 amino acids
Theoretical weight: 27.62 KDa
Source organism: Thermus thermophilus HB27
UniProt:
  • Canonical: Q72LA6 (Residues: 1-253; Coverage: 100%)
Gene name: TT_C0153
Pfam: Polysulfide reductase
InterPro: Polysulfide reductase
CATH: Formate dehydrogenase/DMSO reductase domain
Hypothetical membrane spanning protein in PDB entry 2vpx, assembly 1, front view.
Hypothetical membrane spanning protein in PDB entry 2vpx, assembly 1, side view.
Hypothetical membrane spanning protein in PDB entry 2vpx, assembly 1, top view.
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