Function and Biology Details
Reaction catalysed:
Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D-galactosides
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
- Glycoside hydrolase, family 2
- Beta galactosidase small chain/ domain 5
- Beta-Galactosidase/glucuronidase domain superfamily
- Immunoglobulin-like fold
- Galactose mutarotase-like domain superfamily
- Glycoside hydrolase-type carbohydrate-binding
- Beta-galactosidase, domain 4
- Glycoside hydrolase, family 2, conserved site
6 more domains
Structure analysis Details
Assembly composition:
homo tetramer (preferred)
Assembly name:
Beta-galactosidase (preferred)
PDBe Complex ID:
PDB-CPX-133036 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Beta-galactosidase
Molecule details ›
Chains: A, B, C, D
Length: 1052 amino acids
Theoretical weight: 119.74 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
Sequence domains:
Length: 1052 amino acids
Theoretical weight: 119.74 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli
UniProt:
- Canonical:
P00722 (Residues: 10-1024; Coverage: 99%)
Sequence domains:
- Glycosyl hydrolases family 2, sugar binding domain
- Glycosyl hydrolases family 2
- Glycosyl hydrolases family 2, TIM barrel domain
- Beta-galactosidase, domain 4
- Beta galactosidase small chain
