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Information on EC 3.2.1.165 - exo-1,4-beta-D-glucosaminidase and Organism(s) Hypocrea jecorina and UniProt Accession Q4R1C4

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IUBMB Comments
Chitosan is a partially or totally N-deacetylated chitin derivative that is found in the cell walls of some phytopathogenic fungi and comprises D-glucosamine residues with a variable content of GlcNAc residues . Acts specifically on chitooligosaccharides and chitosan, having maximal activity on chitotetraose, chitopentaose and their corresponding alcohols . The enzyme can degrade GlcN-GlcNAc but not GlcNAc-GlcNAc . A member of the glycoside hydrolase family 2 (GH-2) .
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Hypocrea jecorina
UNIPROT: Q4R1C4
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Word Map
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria, Archaea
Reaction Schemes
hydrolysis of chitosan or chitosan oligosaccharides to remove successive D-glucosamine residues from the non-reducing termini
Synonyms
exo-beta-d-glucosaminidase, glcnase, gls93, exo-chitosanase, exochitosanase, beta-glcnase, exo-beta-glucosaminidase, more
PATHWAY SOURCE
PATHWAYS
SYSTEMATIC NAME
IUBMB Comments
chitosan exo-(1->4)-beta-D-glucosaminidase
Chitosan is a partially or totally N-deacetylated chitin derivative that is found in the cell walls of some phytopathogenic fungi and comprises D-glucosamine residues with a variable content of GlcNAc residues [4]. Acts specifically on chitooligosaccharides and chitosan, having maximal activity on chitotetraose, chitopentaose and their corresponding alcohols [1]. The enzyme can degrade GlcN-GlcNAc but not GlcNAc-GlcNAc [3]. A member of the glycoside hydrolase family 2 (GH-2) [4].
CAS REGISTRY NUMBER
COMMENTARY hide
9012-33-3
c.f. EC 3.2.1.52
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
EBDG_HYPJE
892
0
99428
Swiss-Prot
Secretory Pathway (Reliability: 4)