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Random mutagenesis by error-prone PCR was introduced to kojibiose phosphorylase (KP; EC 2.4.1.230) from Thermoanaerobacter brockii ATCC35047. One thermostable mutant and two DP-mutants that were defin...
Alkaline α-amylase from Bacillus sp. strain KSM-K38 (AmyK38) is a calcium-free enzyme that is stable against chelating and oxidative reagents. Recently, the thermostability of this enzyme was improved...
Malto-oligosyltrehalose synthase (EC 5.4.99.15, MTSase) catalyzes the conversion of α-1,4-glucan to glycosyltrehalose by forming an α,α-1,1-glucosidic linkage on the reducing side of the α-1,4-glucan....
The thermal stability of sucrose phosphorylase (EC 2.4.1.7) from Streptococcus mutans was enhanced using random and site-directed mutageneses. Random mutagenesis studies revealed that eight single ami...
An α-amylase II (TVA II) produced by Thermoactinomyces vulgaris R-47 exhibits wide substrate specificity for starch, pullulan, cyclodextrins and isopanose. Asp465 and Arg469 are located at subsite (-2...
In Aspergillus awamori glucoamylase, the optimal pH has been reported to increase to maintain activity by a mutation of Ser411 which forms a hydrogen-bond with a catalytic base (Fang and Ford, Protein...
A classical chemical mutagenesis protocol was evaluated for increasing ß-galactosidase production by probiotic bacteria to improve their potential to treat symptoms of lactose malabsorption in h...

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