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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1999-3-22
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pubmed:abstractText |
Chitosanases 33 kDa and 40 kDa in size were detected in the culture supernatant of Bacillus circulans WL-12. One of the two chitosanases, chitosanse 40 (40-kDa chitosanase) has been shown to be identical to the enzyme which has been reported previously as a beta-1,3-1,4-glucanase by Bueno et al. The enzyme has been classified into family 8 glycosyl hydrolases together with the enzymes formally known as cellulase family D. This enzyme named chitosanase 40/beta-1,3-1,4-glucanase hydrolyzed both chitosan and beta-1,3-1,4-glucan with similar efficiency. However, the production of the enzyme was induced with chitosan but not by beta-1,3-1,4-glucan. Therefore, it seems possible that the major substrate of this enzyme is chitosan rather than beta-1,3-1,4-glucan. Analysis of degradation products generated from partially N-acetylated chitosan showed that chitosanase 40/beta-1,3-1,4-glucanse hydrolyzes GlcN-GlcN and GlcN-GlcNAc linkages but not GlcNAc-GlcNAc nor GlcNAc-GlcN. The specificity for hydrolyzing linkages of this enzyme is similar to that of the chitosanase from S. griseus HUT6037.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0916-8451
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
62
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2107-14
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9972232-Bacillus,
pubmed-meshheading:9972232-Carbohydrate Conformation,
pubmed-meshheading:9972232-Carbohydrate Sequence,
pubmed-meshheading:9972232-Cloning, Molecular,
pubmed-meshheading:9972232-Endo-1,3(4)-beta-Glucanase,
pubmed-meshheading:9972232-Enzyme Induction,
pubmed-meshheading:9972232-Glycoside Hydrolases,
pubmed-meshheading:9972232-Hydrolysis,
pubmed-meshheading:9972232-Species Specificity,
pubmed-meshheading:9972232-Streptomyces griseus
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pubmed:year |
1998
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pubmed:articleTitle |
Chitosanase activity of the enzyme previously reported as beta-1,3-1,4-glucanase from Bacillus circulans WL-12.
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pubmed:affiliation |
Department of Applied Biological Sciences, Faculty of Agriculture, Saga University, Japan.
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pubmed:publicationType |
Journal Article,
Comparative Study
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