Article
Function of second glucan binding site including tyrosines 54 and 101 in Thermus aquaticus amylomaltase.
Journal of bioscience and bioengineering - 1 Feb 2007
Fujii Kazutoshi, Minagawa Hirotaka, Terada Yoshinobu, Takaha Takeshi, Kuriki Takashi, Shimada Jiro, Kaneko Hiroki
Abstract excerpt
Amylomaltase from Thermus aquaticus catalyzes three types of transglycosylation reaction, as well as a weak hydrolytic reaction of alpha-1,4 glucan. From our previous study [Fujii et al., Appl. Environ. Microbiol., 71, 5823-5827 (2005)], tyrosine 54 (Y54) was identified as an amino acid controlling the reaction specificity of this enzyme. Since Y54 is not located around the active site but in the proposed second...
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