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Beta-glycosidase from Sulfolobus solfataricus in complex with glucoimidazole

Source organism: Saccharolobus solfataricus
Biochemical function: hydrolase activity, acting on glycosyl bonds
Biological process: carbohydrate metabolic process
Cellular component: not assigned

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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

Sequence family

Pfam Protein family (Pfam)
PF00232
Domain description: Glycosyl hydrolase family 1
Occurring in:
  1. Beta-galactosidase
The deposited structure of PDB entry 2ceq contains 2 copies of Pfam domain PF00232 (Glycosyl hydrolase family 1) in Beta-galactosidase. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR001360
Domain description: Glycoside hydrolase family 1
Occurring in:
  1. Beta-galactosidase
IPR018120
Domain description: Glycoside hydrolase family 1, active site
Occurring in:
  1. Beta-galactosidase
IPR033132
Domain description: Glycosyl hydrolases family 1, N-terminal conserved site
Occurring in:
  1. Beta-galactosidase
IPR017853
Domain description: Glycoside hydrolase superfamily
Occurring in:
  1. Beta-galactosidase

Structure domain

CATH CATH domain
3.20.20.80
Class: Alpha Beta
Architecture: Alpha-Beta Barrel
Topology: TIM Barrel
Homology: Glycosidases
Occurring in:
  1. Beta-galactosidase
The deposited structure of PDB entry 2ceq contains 2 copies of CATH domain 3.20.20.80 (TIM Barrel) in Beta-galactosidase. Showing 1 copy in chain A.
SCOP SCOP annotation
51521
Class: Alpha and beta proteins (a/b)
Fold: TIM beta/alpha-barrel
Superfamily: (Trans)glycosidases
Occurring in:
  1. Beta-galactosidase
The deposited structure of PDB entry 2ceq contains 2 copies of SCOP domain 51521 (Family 1 of glycosyl hydrolase) in Beta-galactosidase. Showing 1 copy in chain A.

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