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X-ray crystal structure of Desulfovibrio vulgaris rubrerythrin with zinc substituted into the [Fe(SCys)4] site and alternative diiron site structures

X-ray diffraction
1.75Å resolution
PDB entry 1qyb coloured by chain, front view.
PDB entry 1qyb coloured by chain, side view.
PDB entry 1qyb coloured by chain, top view.
Source organism: Desulfovibrio vulgaris str. Hildenborough
Assemblies composition:
homo dimer (preferred)
homo tetramer
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Rubrerythrin
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Multimeric state: homo dimer
Accessible surface area: 18176.4 Å2
Buried surface area: 3860.44 Å2
Dissociation area: 1,456.93 Å2
Dissociation energy (ΔGdiss): 14.81 kcal/mol
Dissociation entropy (TΔSdiss): 12.89 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-150311
Assembly 2
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Assembly Name: Rubrerythrin
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Multimeric state: homo tetramer
Accessible surface area: 29942.69 Å2
Buried surface area: 14130.99 Å2
Dissociation area: 3,205.05 Å2
Dissociation energy (ΔGdiss): 27.99 kcal/mol
Dissociation entropy (TΔSdiss): 14.6 kcal/mol
Symmetry number: 4
PDBe Complex ID: PDB-CPX-150312

Macromolecules

Rubrerythrin
Chain: A
Length: 191 amino acids
Theoretical weight: 21.58 KDa
Source organism: Desulfovibrio vulgaris str. Hildenborough
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P24931 (Residues: 1-191; Coverage: 100%)
Gene names: DVU_3094, rbr
Pfam:
InterPro:
CATH:
SCOP:
Rubrerythrin in PDB entry 1qyb, assembly 1, front view.
Rubrerythrin in PDB entry 1qyb, assembly 1, side view.
Rubrerythrin in PDB entry 1qyb, assembly 1, top view.
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