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Solution structure of the complex between nitrite reductase and pseudoazurin from A. faecalis

Solution NMR
PDB entry 2p80 coloured by chain, ensemble of 20 models, front view.
PDB entry 2p80 coloured by chain, ensemble of 20 models, side view.
PDB entry 2p80 coloured by chain, ensemble of 20 models, top view.
Source organism: Alcaligenes faecalis
Assembly composition:
hetero tetramer (preferred)
Entry contents: 2 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Copper-containing nitrite reductase and Pseudoazurin
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Multimeric state: hetero tetramer
Accessible surface area: 39626.03 Å2
Buried surface area: 14701.6 Å2
Dissociation area: 750.55 Å2
Dissociation energy (ΔGdiss): 1.01 kcal/mol
Dissociation entropy (TΔSdiss): 11.82 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-137609

Macromolecules

Copper-containing nitrite reductase
Chains: A, B, C
Length: 341 amino acids
Theoretical weight: 36.88 KDa
Source organism: Alcaligenes faecalis
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P38501 (Residues: 40-376; Coverage: 98%)
Gene names: nir, nirK
Pfam:
InterPro:
CATH: Cupredoxins - blue copper proteins
SCOP: Multidomain cupredoxins
Copper-containing nitrite reductase in PDB entry 2p80, assembly 1, front view.
Copper-containing nitrite reductase in PDB entry 2p80, assembly 1, side view.
Copper-containing nitrite reductase in PDB entry 2p80, assembly 1, top view.
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Pseudoazurin
Chain: D
Length: 123 amino acids
Theoretical weight: 13.38 KDa
Source organism: Alcaligenes faecalis
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P04377 (Residues: 24-146; Coverage: 100%)
Pfam: Copper binding proteins, plastocyanin/azurin family
InterPro:
CATH: Cupredoxins - blue copper proteins
SCOP: Plastocyanin/azurin-like
Pseudoazurin in PDB entry 2p80, assembly 1, front view.
Pseudoazurin in PDB entry 2p80, assembly 1, side view.
Pseudoazurin in PDB entry 2p80, assembly 1, top view.
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