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CATH Classification

Domain Context

CATH Clusters

Superfamily Chitosanase, subunit A, domain 2
Functional Family

Enzyme Information

3.2.1.132
Chitosanase.
based on mapping to UniProt P33673
Endohydrolysis of beta-(1->4)-linkages between D-glucosamine residues in a partly acetylated chitosan.
-!- A whole spectrum of chitosanases are now known that can hydrolyze various types of links in chitosan. -!- The only constant property is the endohydrolysis of GlcN-GlcN links, which is common to all known chitosanases. -!- One known chitosanase is limited to this link recognition, while the majority can also recognize GlcN-GlcNAc links or GlcNAc-GlcN links but not both. -!- They also do not recognize GlcNAc-GlcNAc links in partly acetylated chitosan.

UniProtKB Entries (1)

P33673
CHIS_BACCI
Bacillus circulans
Chitosanase

PDB Structure

PDB 2D05
External Links
Method X-RAY DIFFRACTION
Organism Brevibacillus
Primary Citation
Bacillus circulans MH-K1 Chitosanase: Amino Acid Residues Responsible for Substrate Binding
Fukamizo, T., Amano, S., Yamaguchi, K., Yoshikawa, T., Katsumi, T., Saito, J., Suzuki, M., Miki, K., Nagata, Y., Ando, A.
J.Biochem.(Tokyo)
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