› › Function and Biology

Structure of a beta galactosidase with inhibitor

Source organism: Cellvibrio japonicus Ueda107
Biochemical function: beta-galactosidase activity
Biological process: carbohydrate metabolic process
Cellular component: beta-galactosidase complex

Quick links

EC 3.2.1.23: Beta-galactosidase

Reaction catalysed:
Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D-galactosides
Systematic name:
Beta-D-galactoside galactohydrolase
Alternative Name(s):
  • Beta-D-galactanase
  • Beta-D-lactosidase
  • Beta-lactosidase
  • Exo-(1->4)-beta-D-galactanase
  • Hydrolact
  • Lactase
  • Lactozym
  • Maxilact
  • Oryzatym
  • S 2107
  • Sumiklat
  • Trilactase

GO terms

Biochemical function:
Biological process:
Cellular component:

Sequence families

Pfam Protein families (Pfam)
PF18120
Domain description: Domain of unknown function (DUF5597)
Occurring in:
  1. Beta-galactosidase, putative, bgl35A
The deposited structure of PDB entry 6tbf contains 8 copies of Pfam domain PF18120 (Domain of unknown function (DUF5597)) in Beta-galactosidase, putative, bgl35A. Showing 1 copy in chain B.

PF02449
Domain description: Beta-galactosidase
Occurring in:
  1. Beta-galactosidase, putative, bgl35A
The deposited structure of PDB entry 6tbf contains 8 copies of Pfam domain PF02449 (Beta-galactosidase) in Beta-galactosidase, putative, bgl35A. Showing 1 copy in chain B.

InterPro InterPro annotations
IPR040719
Domain description: Domain of unknown function DUF5597
Occurring in:
  1. Beta-galactosidase, putative, bgl35A
IPR013529
Domain description: Glycoside hydrolase, family 42, N-terminal
Occurring in:
  1. Beta-galactosidase, putative, bgl35A
IPR017853
Domain description: Glycoside hydrolase superfamily
Occurring in:
  1. Beta-galactosidase, putative, bgl35A

Quick links