CATH Classification

Domain Context

CATH Clusters

Superfamily Galactose-binding domain-like
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 3VD5
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Substitution for Asn460 cripples {beta}-galactosidase (Escherichia coli) by increasing substrate affinity and decreasing transition state stability.
Wheatley, R.W., Kappelhoff, J.C., Hahn, J.N., Dugdale, M.L., Dutkoski, M.J., Tamman, S.D., Fraser, M.E., Huber, R.E.
Arch.Biochem.Biophys.