申请人:Horikoshi Mamoru
公开号:US06905852B1
公开(公告)日:2005-06-14
A protoporphyrinogen oxidase tolerant to photobleaching herbicide and derivatives thereof, comprising a polypeptide having the amino acid sequence represented by SEQ ID No. 2 or mutated peptides derived therefrom by deletion, addition, substitution, etc. of one or more amino acids in the above amino acid sequence and having an activity substantially equivalent to that of the protoporphyrinogen oxidase. The acquisition of the novel protoporphyrinogen oxidase, which is highly tolerant to photobleaching herbicide and originates in plant, make it possible to construct plants highly tolerant to photobleaching herbicide via the expression of this enzyme in host plants.
一种对光漂白除草剂及其衍生物具有耐受性的原卟啉原氧化酶,包括具有SEQ ID No.2所代表的氨基酸序列或由该氨基酸序列中一个或多个氨基酸的缺失、添加、替换等突变肽所组成的多肽,其活性与原卟啉原氧化酶的活性基本相等。获得这种高度耐受光漂白除草剂的新型原卟啉原氧化酶,使得通过在寄主植物中表达该酶,可以构建高度耐受光漂白除草剂的植物。