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    • 9. 发明申请
    • GLYCOSIDASES, NUCLEIC ACIDS ENCODING THEM AND METHODS OF MAKING AND USING THEM
    • 糖苷酸,编码它们的核酸及其制备和使用方法
    • WO03068910A2
    • 2003-08-21
    • PCT/US0223550
    • 2002-07-22
    • DIVERSA CORPSHORT JAY MSWANSON RONALD VBYLINA EDWARDMATHUR ERIC JLAM DAVID E
    • SHORT JAY MSWANSON RONALD VBYLINA EDWARDMATHUR ERIC JLAM DAVID E
    • C12N9/24C12N9/38C12N9/46C12N
    • C12N9/2468C12N9/2402C12N9/2437C12N9/2454C12N9/2457C12N9/2465C12N9/2494C12Y302/01004C12Y302/01022C12Y302/01025C12Y302/01041C12Y302/01078
    • The invention is directed to enzymes having a glycosidase activity, including thermostable and thermotolerant glycosidase activity, and polynucleotides encoding these enzymes, and making and using these polynucleotides and polypeptides. The glycosidase activities of the enzymes of the invention include the hydrolysis of any glycosidic linkages. For example, a glycosidase activity of an enzyme of the invention includes hydrolysis of a beta-anomeric configuration of a glycosidic linkage, such as the hydrolysis of beta-glucosides, beta-fucosides and beta-galactosides. Another glycosidase activity of an enzyme of the invention includes alpha-galactosidase activity, e.g., catalysis of the hydrolysis of galactose groups on a polysaccharide backbone or catalyzing the hydrolysis of the cleavage of di- or oligosaccharides comprising galactose. Another glycosidase activity of an enzyme of the invention includes catalysis of the hydrolysis of mannose groups internally on a polysaccharide backbone or hydrolysis of the cleavage of di-or oligosaccharides comprising mannose groups. Beta-mannosidases of the invention can hydrolyze non-reducing, terminal mannose residues on a mannose-containing polysaccharide and catalyze the cleavage of di- or oligosaccharides comprising mannose groups.
    • 本发明涉及具有糖苷酶活性的酶,包括耐热和耐热糖苷酶活性,以及​​编码这些酶的多核苷酸,以及制备和使用这些多核苷酸和多肽。 本发明的酶的糖苷酶活性包括任何糖苷键的水解。 例如,本发明的酶的糖苷酶活性包括糖苷键的β-端基异构构型的水解,例如β-葡糖苷,β-岩藻糖苷和β-半乳糖苷的水解。 本发明的酶的另一种糖苷酶活性包括α-半乳糖苷酶活性,例如催化多糖主链上的半乳糖基团的水解或催化水解包含半乳糖的二糖或寡糖的裂解。 本发明的酶的另一种糖苷酶活性包括在多糖骨架内部水解甘露糖基团或水解包含甘露糖基团的二糖或寡糖的水解。 本发明的β-甘露糖苷酶可以在含甘露糖的多糖上水解非还原性末端甘露糖残基,并催化包含甘露糖基团的二糖或寡糖的切割。