Effects of mutation of Asn694 in Aspergillus niger α-glucosidase on hydrolysis and transglucosylation.

doi:10.1007/s00253-017-8402-6

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Article

Effects of mutation of Asn694 in Aspergillus niger α-glucosidase on hydrolysis and transglucosylation.

Applied microbiology and biotechnology - 1 Aug 2017

Ma Min, Okuyama Masayuki, Sato Megumi, Tagami Takayoshi, Klahan Patcharapa, Kumagai Yuya, Mori Haruhide, Kimura Atsuo

Abstract excerpt

Aspergillus niger α-glucosidase (ANG), a member of glycoside hydrolase family 31, catalyzes hydrolysis of α-glucosidic linkages at the non-reducing end. In the presence of high concentrations of maltose, the enzyme also catalyzes the formation of α-(1→6)-glucosyl products by transglucosylation and it is used for production of the industrially useful panose and isomaltooligosaccharides. The initial...

Topics

Aspergillus niger
Glucans
Hydrogen-Ion Concentration
Hydrolysis
Isomaltose
Kinetics
Maltose
Mutagenesis, Site-Directed
Mutation
Substrate Specificity
Trisaccharides
alpha-Glucosidases

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PMID: 28688044
DOI: 10.1007/s00253-017-8402-6

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