› 1uy2

X-ray diffraction
1.7Å resolution

Binding sub-site dissection of a family 6 carbohydrate-binding module by X-ray crystallography and isothermal titration calorimetry

Released:
DOI: 10.2210/pdb1uy2/pdb
PDB entry 1uy2 coloured by chain, front view.
PDB entry 1uy2 coloured by chain, side view.
PDB entry 1uy2 coloured by chain, top view.
Source organism: Thermoclostridium stercorarium
Primary publication:
Binding sub-site dissection of a carbohydrate-binding module reveals the contribution of entropy to oligosaccharide recognition at "non-primary" binding subsites.
Lammerts van Bueren A, Boraston AB
J Mol Biol 340 869-79 (2004)
PMID: 15223327

Function and Biology Details

Reaction catalysed: 
Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-184526 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Endo-1,4-beta-xylanase A Chain: A
Molecule details ›
Chain: A
Length: 145 amino acids
Theoretical weight: 15.24 KDa
Source organism: Thermoclostridium stercorarium
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q8GJ44 (Residues: 233-373; Coverage: 23%)
Gene name: xynA
Sequence domains: Carbohydrate binding module (family 6)
Structure domains: Galactose-binding domain-like

Ligands and Environments

Carbohydrate polymer : NEW Components: XYP
Carbohydrate polymer
3 bound ligands:
Ligand NA 1 x NA
Ligand CA 1 x CA
Ligand GOL 1 x GOL
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-002
Spacegroup: P41212
Unit cell:
a: 83.598Å b: 83.598Å c: 44.843Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.149 0.147 0.189
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

2 review citations

Molecular simulations of carbohydrates and protein-carbohydrate interactions: motivation, issues and prospects.
Fadda et al. (2010)
1 more

1 mention without citation

The C-terminal domain of the Arabinosyltransferase Mycobacterium tuberculosis EmbC is a lectin-like carbohydrate binding module.
Alderwick et al. (2011)