The present invention produces γ-CD in an increased amount when converting starch or starch analog substrate to CD (Cyclodextrin), and the protein sequence in the region between amino acid position 240 includes the amino acid sequence Asn Leu Xxx Asp and the position of the protein sequence Cyclodextrin glycosyltransferase (CGTasde), characterized in that 1 is the starting point of the signal peptide of CGTase and Xxx is a natural amino acid.
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机译：当将淀粉或淀粉类似物底物转化为CD（环糊精）时，本发明以增加的量产生γ-CD，并且在氨基酸位置240之间的区域中的蛋白质序列包括氨基酸序列Asn Leu Xxx Asp和其位置。蛋白序列环糊精糖基转移酶（CGTasde），其特征在于1是CGTase信号肽的起点，Xxx是天然氨基酸。
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