CATH Classification

Domain Context

CATH Clusters

Superfamily Glycosidases
Functional Family Beta-galactosidase

Enzyme Information

3.2.1.23
Beta-galactosidase.
based on mapping to UniProt P00722
Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D- galactosides.
-!- Some enzymes in this group hydrolyze alpha-L-arabinosides; some animal enzymes also hydrolyze beta-D-fucosides and beta-D-glucosides (cf. EC 3.2.1.108).

UniProtKB Entries (1)

P00722
BGAL_ECOLI
Escherichia coli K-12
Beta-galactosidase

PDB Structure

PDB 4DUW
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural Explanation for Allolactose (lac operon inducer) Synthesis by lacZ beta-Galactosidase and the Evolutionary Relationship between Allolactose synthesis and the lac Repressor
Wheatley, R.W., Lo, S., Jancewicz, L.J., Dugdale, M.L., Huber, R.E.
J.Biol.Chem.