5mgc

X-ray diffraction
2.3Å resolution

STRUCTURE OF E298Q-BETA-GALACTOSIDASE FROM ASPERGILLUS NIGER IN COMPLEX WITH 4-Galactosyl-lactose

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-106923 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecules (5 distinct):
Beta-galactosidase A Chain: A
Molecule details ›
Chain: A
Length: 1013 amino acids
Theoretical weight: 110.63 KDa
Source organism: Aspergillus niger CBS 513.88
Expression system: Saccharomyces cerevisiae
UniProt:
  • Canonical: A2QAN3 (Residues: 1-1007; Coverage: 100%)
Gene names: An01g12150, lacA
Sequence domains:
Structure domains:

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG, BMA, MAN
Carbohydrate polymer : NEW Components: NAG, BMA, MAN
Carbohydrate polymer : NEW Components: NAG, BMA, MAN
Carbohydrate polymer : NEW Components: GLC, GAL
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALBA BEAMLINE XALOC
Spacegroup: P21
Unit cell:
a: 59.627Å b: 106.659Å c: 84.425Å
α: 90° β: 96.13° γ: 90°
R-values:
R R work R free
0.171 0.169 0.204
Expression system: Saccharomyces cerevisiae