PDBe 1t6g

X-ray diffraction
1.8Å resolution

Crystal structure of the Triticum aestivum xylanase inhibitor-I in complex with aspergillus niger xylanase-I


Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero dimer (preferred)
hetero tetramer
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Xylanase inhibitor TAXI-I Chains: A, B
Molecule details ›
Chains: A, B
Length: 381 amino acids
Theoretical weight: 38.86 KDa
Source organism: Triticum aestivum
  • Canonical: Q8H0K8 (Residues: 22-402; Coverage: 100%)
Gene names: TRAES_3BF012400030CFD_c1, taxi-I, xiI
Sequence domains:
Structure domains: Acid Proteases
Endo-1,4-beta-xylanase A Chains: C, D
Molecule details ›
Chains: C, D
Length: 184 amino acids
Theoretical weight: 19.89 KDa
Source organism: Aspergillus niger
  • Canonical: P55329 (Residues: 28-211; Coverage: 100%)
Gene name: xynA
Sequence domains: Glycosyl hydrolases family 11
Structure domains: Jelly Rolls

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-1
Spacegroup: P32
Unit cell:
a: 88.434Å b: 88.434Å c: 128.995Å
α: 90° β: 90° γ: 120°
R R work R free
0.161 0.158 0.192