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beta-fructosidase from Thermotoga maritima in complex with raffinose

Source organism: Thermotoga maritima MSB8
Biochemical function: hydrolase activity, acting on glycosyl bonds
Biological process: carbohydrate metabolic process
Cellular component: not assigned

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EC 3.2.1.26: Beta-fructofuranosidase

Reaction catalysed:
Hydrolysis of terminal non-reducing beta-D-fructofuranoside residues in beta-D-fructofuranosides
Systematic name:
Beta-D-fructofuranoside fructohydrolase
Alternative Name(s):
  • Acid invertase
  • Alkaline invertase
  • Beta-fructosidase
  • Beta-h-fructosidase
  • Fructosylinvertase
  • Glucosucrase
  • Invertase
  • Invertin
  • Maxinvert L 1000
  • Saccharase
  • Sucrase

GO terms

Sequence families

Pfam Protein families (Pfam)
PF08244
Domain description: Glycosyl hydrolases family 32 C terminal
Occurring in:
  1. Beta-fructosidase
The deposited structure of PDB entry 1w2t contains 6 copies of Pfam domain PF08244 (Glycosyl hydrolases family 32 C terminal) in Beta-fructosidase. Showing 1 copy in chain A.

PF00251
Domain description: Glycosyl hydrolases family 32 N-terminal domain
Occurring in:
  1. Beta-fructosidase
The deposited structure of PDB entry 1w2t contains 6 copies of Pfam domain PF00251 (Glycosyl hydrolases family 32 N-terminal domain) in Beta-fructosidase. Showing 1 copy in chain A.

InterPro InterPro annotations
IPR023296
Domain description: Glycosyl hydrolase, five-bladed beta-propeller domain superfamily
Occurring in:
  1. Beta-fructosidase
IPR013189
Domain description: Glycosyl hydrolase family 32, C-terminal
Occurring in:
  1. Beta-fructosidase
IPR013320
Domain description: Concanavalin A-like lectin/glucanase domain superfamily
Occurring in:
  1. Beta-fructosidase
IPR018053
Domain description: Glycoside hydrolase, family 32, active site
Occurring in:
  1. Beta-fructosidase
IPR013148
Domain description: Glycosyl hydrolase family 32, N-terminal
Occurring in:
  1. Beta-fructosidase
IPR001362
Domain description: Glycoside hydrolase, family 32
Occurring in:
  1. Beta-fructosidase

Structure domains

CATH CATH domains
2.60.120.560
Class: Mainly Beta
Architecture: Sandwich
Topology: Jelly Rolls
Homology: Exo-inulinase; domain 1
Occurring in:
  1. Beta-fructosidase
The deposited structure of PDB entry 1w2t contains 6 copies of CATH domain 2.60.120.560 (Jelly Rolls) in Beta-fructosidase. Showing 1 copy in chain A.
2.115.10.20
Class: Mainly Beta
Architecture: 5 Propeller
Topology: Tachylectin-2; Chain A
Homology: Glycosyl hydrolase domain; family 43
Occurring in:
  1. Beta-fructosidase
The deposited structure of PDB entry 1w2t contains 6 copies of CATH domain 2.115.10.20 (Tachylectin-2; Chain A) in Beta-fructosidase. Showing 1 copy in chain A.
SCOP SCOP annotations
101652
Class: All beta proteins
Fold: Concanavalin A-like lectins/glucanases
Superfamily: Concanavalin A-like lectins/glucanases
Occurring in:
  1. Beta-fructosidase
The deposited structure of PDB entry 1w2t contains 6 copies of SCOP domain 101652 (Glycosyl hydrolases family 32 C-terminal domain) in Beta-fructosidase. Showing 1 copy in chain A.
101884
Class: All beta proteins
Fold: 5-bladed beta-propeller
Superfamily: Arabinanase/levansucrase/invertase
Occurring in:
  1. Beta-fructosidase
The deposited structure of PDB entry 1w2t contains 6 copies of SCOP domain 101884 (Glycosyl hydrolases family 32 N-terminal domain) in Beta-fructosidase. Showing 1 copy in chain A.

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