申请人:BAYER CROPSCIENCE AKTIENGESELLSCHAFT
公开号:US10400249B2
公开(公告)日:2019-09-03
In the present invention, HPPD enzymes and plants containing them showing a full tolerance against several classes of HPPD-inhibitors are described.
A set of HPPD enzymes have been designed which have either no or only a significantly reduced affinity to HPPD inhibitors and, at the same time, the rate of dissociation of the HPPD inhibitors of the enzyme is increased to such an extent that the HPPD inhibitors no longer act as slow-binding or slow, tight-binding inhibitors but, instead of this, have become fully reversible inhibitors.
In particular, isolated polynucleotides encoding HPPD inhibitor tolerance polypeptides are provided. Additionally, amino acid sequences corresponding to the polynucleotides are encompassed.
本发明描述了对几类 HPPD 抑制剂具有完全耐受性的 HPPD 酶和含有这些酶的植物。
本发明设计了一组 HPPD 酶,它们对 HPPD 抑制剂没有亲和力或亲和力明显降低,同时,酶的 HPPD 抑制剂的解离率增加,以至于 HPPD 抑制剂不再作为慢结合或慢紧密结合抑制剂,而是成为完全可逆的抑制剂。
特别是提供了编码 HPPD 抑制剂耐受性多肽的分离多核苷酸。此外,还包括与多核苷酸相对应的氨基酸序列。