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Cohesin-Dockerin complex from the cellulosome of Clostridium thermocellum

X-ray diffraction
2.2Å resolution
PDB entry 1ohz coloured by chain, front view.
PDB entry 1ohz coloured by chain, side view.
PDB entry 1ohz coloured by chain, top view.
Source organism: Acetivibrio thermocellus
Assembly composition:
hetero hexamer (preferred)
Entry contents: 2 distinct polypeptide molecules

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Cellulosomal-scaffolding protein A and Endo-1,4-beta-xylanase Y
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Multimeric state: hetero hexamer
Accessible surface area: 23269.5 Å2
Buried surface area: 10228.19 Å2
Dissociation area: 409.58 Å2
Dissociation energy (ΔGdiss): -14.89 kcal/mol
Dissociation entropy (TΔSdiss): 3.53 kcal/mol
Symmetry number: 3
PDBe Complex ID: PDB-CPX-156369

Macromolecules

Cellulosomal-scaffolding protein A
Chain: A
Length: 162 amino acids
Theoretical weight: 17.03 KDa
Source organism: Acetivibrio thermocellus
Expression system: Escherichia coli
UniProt:
  • Canonical: Q06851 (Residues: 179-340; Coverage: 9%)
Gene names: Cthe_3077, cipA
Pfam: Cohesin domain
InterPro:
CATH: Immunoglobulin-like
SCOP: Cellulose-binding domain family III
Cellulosomal-scaffolding protein A in PDB entry 1ohz, assembly 1, front view.
Cellulosomal-scaffolding protein A in PDB entry 1ohz, assembly 1, side view.
Cellulosomal-scaffolding protein A in PDB entry 1ohz, assembly 1, top view.
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Endo-1,4-beta-xylanase Y
Chain: B
Length: 60 amino acids
Theoretical weight: 6.52 KDa
Source organism: Acetivibrio thermocellus
Expression system: Escherichia coli
UniProt:
  • Canonical: P51584 (Residues: 732-791; Coverage: 6%)
Gene name: xynY
Pfam: Dockerin type I domain
InterPro:
CATH: Dockerin domain
SCOP: Type I dockerin domain
Endo-1,4-beta-xylanase Y in PDB entry 1ohz, assembly 1, front view.
Endo-1,4-beta-xylanase Y in PDB entry 1ohz, assembly 1, side view.
Endo-1,4-beta-xylanase Y in PDB entry 1ohz, assembly 1, top view.
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