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CATH Superfamily 2.160.20.10

Single-stranded right-handed beta-helix, Pectin lyase-like

The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
Single-stranded right-handed beta-helix, Pectin lyase-like
".

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.
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FunFam 22083: Iota-carrageenase

There are 1 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
Iota-carrageenase. [EC: 3.2.1.157]
Endohydrolysis of 1,4-beta-D-linkages between D-galactose 4-sulfate and 3,6-anhydro-D-galactose-2-sulfate in iota-carrageenans.
  • The main products of hydrolysis are iota-neocarratetraose sulfate and iota-neocarrahexaose sulfate.
  • Iota-neocarraoctaose is the shortest substrate oligomer that can be cleaved.
  • Unlike EC 3.2.1.81 and EC 3.2.1.83, this enzyme proceeds with inversion of the anomeric configuration.
  • Iota-carrageenan differs from kappa-carrageenan by possessing a sulfo group on O-2 of the 3,6-anhydro-D-galactose residues, in addition to that present in the kappa-compound on O-4 of the D-galactose residues.
 4 Q9F284 Q9F284 Q9F5I8 Q9F5I8
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