› 1ukr

X-ray diffraction
2.4Å resolution

STRUCTURE OF ENDO-1,4-BETA-XYLANASE C

Released:
DOI: 10.2210/pdb1ukr/pdb
PDB entry 1ukr coloured by chain, front view.
PDB entry 1ukr coloured by chain, side view.
PDB entry 1ukr coloured by chain, top view.
Source organism: Aspergillus niger
Primary publication:
Three-dimensional structure of Endo-1,4-beta-xylanase I from Aspergillus niger: molecular basis for its low pH optimum.
Krengel U, Dijkstra BW
J Mol Biol 263 70-8 (1996)
PMID: 8890913

Function and Biology Details

Reaction catalysed: 
Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-157296 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Endo-1,4-beta-xylanase A Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 184 amino acids
Theoretical weight: 19.86 KDa
Source organism: Aspergillus niger
Expression system: Escherichia coli
UniProt:
  • Canonical: P55329 (Residues: 28-211; Coverage: 100%)
Gene name: xynA
Sequence domains: Glycosyl hydrolases family 11
Structure domains: Jelly Rolls

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X31
Spacegroup: P212121
Unit cell:
a: 84.3Å b: 85.3Å c: 113.8Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.179 0.179 not available
Expression system: Escherichia coli

Quick links

Citations

6 review citations

Xylanases, xylanase families and extremophilic xylanases.
Collins et al. (2005)
5 more

5 mentions without citation

Molecular structure and catalytic mechanism of fungal family G acidophilic xylanases.
Dey et al. (2018)
4 more