1G1Y:
reference: Studies on the hydrolyzing mechanism for cyclodextrins of Thermoactinomyces vulgaris R-47 alpha-amylase 2 (TVAII). X-ray structure of the mutant E354A complexed with beta-cyclodextrin, and kinetic analyses on cyclodextrins., Kondo S, Ohtaki A, Tonozuka T, Sakano Y, Kamitori S, J Biochem (Tokyo) 2001 Mar;129(3):423-8. PMID: 11226882

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