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:

"
Beta-1,3-xylanase, CBM31 domain
".

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.

Superfamily: Beta-1,3-xylanase, CBM31 domain

Many glycoside hydrolases are modular proteins composed of catalytic modules appended to one or more non-catalytic carbohydrate-binding modules (CBMs). CBMs bind to a range of polysaccharides that include crystalline cellulose and hemicelluloses such as glucan, xylan, mannan, and glucomannan. The main function of CBMs is to increase the catalytic efficiency of the enzymes against soluble and/or insoluble substrates by bringing the catalytic module into prolonged and intimate contact with its substrate. So far many CBMs have been identified and are classified into 43 different families in the CAZy database based on sequence similarity and biochemical function.

This entry represents the family 31 carbohydrate-binding module (CBM31) of beta-1,3-xylanase PMID:16061225. Beta-1,3-xylan is a homopolymer of b-1,3-linked D-xylose and is a polysaccharide peculiar to marine algae and it is hydrolized by Beta-1,3-xylanase PMID:10742274.

GO Diversity

Unique GO annotations
4 Unique GO terms

EC Diversity

Unique EC annotations
1 Unique EC terms

Species Diversity

Unique species annotations
14 Unique species

Sequence/Structure Diversity

Overview of the sequence / structure diversity of this superfamily compared to other superfamilies in CATH. Click on the chart to view the data in more detail.

Superfamily Summary

A general summary of information for this superfamily.
Structures
Domains: 6
Domain clusters (>95% seq id): 1
Domain clusters (>35% seq id): 1
Unique PDBs: 1
Alignments
Structural Clusters (5A): 1
Structural Clusters (9A): 1
FunFam Clusters: 1
Function
Unique EC: 1
Unique GO: 4
Taxonomy
Unique Species: 14