本发明公开了一种新型低毒性葡激酶突变体，还公开了其制备方法及用 途。
The present invention discloses one new type of low toxicity glucokinase mutant and its preparation process and use.
采用中国鉴别寄主对突变体的毒性研究表明，各突变菌株的毒性均较原始菌系发生了明显改变。
Infection assay of mutants on Chinese differential host shows that virulence of all the mutants changes significantly in contrast with wild-type isolates.
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