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Crystal structure of michaelis complex of catalytic-site mutant xylanase from Streptomyces olivaceoviridis E-86

X-ray diffraction
1.85Å resolution
PDB entry 2d20 coloured by chain, front view.
PDB entry 2d20 coloured by chain, side view.
PDB entry 2d20 coloured by chain, top view.
Source organism: Streptomyces olivaceoviridis
Assembly composition:
monomeric (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Beta-xylanase
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Multimeric state: monomeric
Accessible surface area: 15664.33 Å2
Buried surface area: 1518.1 Å2
Dissociation area: 3.09 Å2
Dissociation energy (ΔGdiss): -0.79 kcal/mol
Dissociation entropy (TΔSdiss): 0.81 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-181928
Assembly 2
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Assembly Name: Beta-xylanase
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Multimeric state: monomeric
Accessible surface area: 15584.32 Å2
Buried surface area: 1826.47 Å2
Dissociation area: 193.46 Å2
Dissociation energy (ΔGdiss): -6.98 kcal/mol
Dissociation entropy (TΔSdiss): 2.01 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-181928

Macromolecules

Beta-xylanase
Chains: A, B
Length: 436 amino acids
Theoretical weight: 46.77 KDa
Source organism: Streptomyces olivaceoviridis
Expression system: Escherichia coli
UniProt:
  • Canonical: Q7SI98 (Residues: 1-436; Coverage: 100%)
Pfam:
InterPro:
CATH:
Beta-xylanase in PDB entry 2d20, assembly 1, front view.
Beta-xylanase in PDB entry 2d20, assembly 1, side view.
Beta-xylanase in PDB entry 2d20, assembly 1, top view.
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