View in Gene3D

CATH Superfamily 2.60.120.560

Exo-inulinase; domain 1

The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
Exo-inulinase; domain 1
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
« Back to all FunFams

FunFam 2: Beta-fructofuranosidase, insoluble isoenzyme CWINV...

There are 4 EC terms in this cluster

Please note: EC annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

Note: The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.

EC Term Annotations Evidence
Fructan beta-(2,1)-fructosidase. [EC: 3.2.1.153]
Hydrolysis of terminal, non-reducing (2->1)-linked beta-D-fructofuranose residues in fructans.
  • Possesses one of the activities of EC 3.2.1.80.
  • While the best substrates are the inulin-type fructans, such as 1-kestose (beta-D-fructofuranosyl-(2->1)-beta-D-fructofuranosyl alpha-D-glucopyranoside) and 1,1-nystose (beta-D-fructofuranosyl- (2->1)-beta-D-fructofuranosyl-(2->1)-beta-D-fructofuranosyl alpha-D- glucopyranoside), some (but not all) levan-type fructans can also be hydrolyzed, but more slowly (see EC 3.2.1.154).
  • Sucrose, while being a very poor substrate, can substantially inhibit enzyme activity in some cases.
 14 A0A446V3H0 A0A446V3H0 A0A452XG83 A0A452XG83 B6DXP5 B6DZC8 B6DZD0 B6DZD1 B6DZD2 Q70AT7
(4 more...)
Beta-fructofuranosidase. [EC: 3.2.1.26]
Hydrolysis of terminal non-reducing beta-D-fructofuranoside residues in beta-D-fructofuranosides.
  • Substrates include sucrose.
  • Also catalyzes fructotransferase reactions.
 12 B5KNJ4 B5KNJ4 B8ATN8 B8ATN8 Q01IS7 Q01IS7 Q0JDC5 Q0JDC5 Q39041 Q43348
(2 more...)
Sucrose:sucrose fructosyltransferase. [EC: 2.4.1.99]
2 sucrose = D-glucose + beta-D-fructofuranosyl-(2->1)-beta-D- fructofuranosyl alpha-D-glucopyranoside.
    		 1 Q9FSV7
    Fructan beta-fructosidase. [EC: 3.2.1.80]
    Hydrolysis of terminal, non-reducing (2->1)- and (2->6)-linked beta-D- fructofuranose residues in fructans.
    • Hydrolyzes inulin and levan, and also sucrose.
    		 1 Q67XZ3