Various Roles of Chitinases.
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چکیده
منابع مشابه
Plant chitinases and their roles in resistance to fungal diseases.
Chitinases are enzymes that hydrolyze the N-acetylglucosamine polymer chitin, and they occur in diverse plant tissues over a broad range of crop and noncrop species. The enzymes may be expressed constitutively at low levels but are dramatically enhanced by numerous abiotic agents (ethylene, salicylic acid, salt solutions, ozone, UV light) and by biotic factors (fungi, bacteria, viruses, viroids...
متن کاملChitinases and Peptide Mimotopes
high-affinity chitin binding region [4]. Five homologs of the plant chitinases have been identified in A. fumiga-tus. Only one member of this family has a putative GPI anchor and associated cleavage site (http://www.tigr. org/tdb/e2k1/afu1/), suggesting that this enzyme may Inhibition of glycosylhydrolases by peptides mimick-function in morphogenesis since most of the GPI an-ing carbohydrates o...
متن کاملChitinases from Serratia marcescens
Serratia marcescens is one of the most effective bacteria for degradation of chitin, a 1,4-β-linked polymer of N-acetyl-β-Dglucosamine (GlcNAc). Chitinolysis by S. marcescens involves at least four enzymes and a chitin-binding protein. Studies of the enzymology and the structures of the enzymes provide insight in how a natural set of chitinolytic enzymes may be built up. S. marcescens chitinase...
متن کاملChitinases - AnomericFormof theReactionProducts
Anomericformoftheproductsfremchitinase-catalyzedhydrolysis was analyzed by iH-NMR spectroscopy. When the chitinase from StreptenoTces griseus was added to the solution of substrate, Ai,AJ,IV,IV;IV-pentaacetylchitopentaitol, fi-anomer was first produced by the enzymatic hydrolysis, and then transformed to oc-anomer by mlltarotatioo. In contrast, the chitinase from Dioscorea qmpesita (yam) produc...
متن کاملChitinases and lung diseases.
Chitinase enzymes that hydrolize chitin and some articficial substrates are expressed in human despite lacking of the endogenous chitin within the body. Chitinases phatophysiological functions within human are not fully known. Recent evidence revealed that chitinases may have role into some processes of immune responses and inflammatory system. In this review, we discuss the role of chitinases ...
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ژورنال
عنوان ژورنال: Kagaku To Seibutsu
سال: 1997
ISSN: 0453-073X,1883-6852
DOI: 10.1271/kagakutoseibutsu1962.35.408