1c7s

X-ray diffraction
1.8Å resolution

BETA-N-ACETYLHEXOSAMINIDASE MUTANT D539A COMPLEXED WITH DI-N-ACETYL-BETA-D-GLUCOSAMINE (CHITOBIASE)

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (2 distinct):
Chitobiase Chain: A
Molecule details ›
Chain: A
Length: 858 amino acids
Theoretical weight: 95.94 KDa
Source organism: Serratia marcescens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q54468 (Residues: 28-885; Coverage: 100%)
Gene name: chb
Sequence domains:
Structure domains:

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X11
Spacegroup: P21212
Unit cell:
a: 108.794Å b: 99.96Å c: 86.308Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.183 0.171 0.224
Expression system: Escherichia coli