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Crystal structure of radical H88Q Synechocystis sp. PCYA

X-ray diffraction
1.5Å resolution
PDB entry 3nb9 coloured by chain, front view.
PDB entry 3nb9 coloured by chain, side view.
PDB entry 3nb9 coloured by chain, top view.
Source organism: Synechocystis sp. PCC 6803
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Phycocyanobilin:ferredoxin oxidoreductase
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Multimeric state: monomeric
Accessible surface area: 11278.92 Å2
Buried surface area: 1706.51 Å2
Dissociation area: 89.02 Å2
Dissociation energy (ΔGdiss): -1.62 kcal/mol
Dissociation entropy (TΔSdiss): -0.32 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-176303

Macromolecules

Phycocyanobilin:ferredoxin oxidoreductase
Chain: A
Length: 248 amino acids
Theoretical weight: 28.15 KDa
Source organism: Synechocystis sp. PCC 6803
Expression system: Escherichia coli
UniProt:
  • Canonical: Q55891 (Residues: 1-248; Coverage: 100%)
Gene names: pcyA, slr0116
Pfam: Ferredoxin-dependent bilin reductase
InterPro:
CATH: oxygen-dependent coproporphyrinogen oxidase
Phycocyanobilin:ferredoxin oxidoreductase in PDB entry 3nb9, assembly 1, front view.
Phycocyanobilin:ferredoxin oxidoreductase in PDB entry 3nb9, assembly 1, side view.
Phycocyanobilin:ferredoxin oxidoreductase in PDB entry 3nb9, assembly 1, top view.
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