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Gene cloning and expression of aminopeptidase N and cadherin from midgut of the rice stem borer, Chilo suppressalis 被引量:3
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作者 Hong-Kun Yu Hao Ghen +4 位作者 Yong-Jun Zhang Kong-Ming Wu Ge-Mei Liang Ze-Wen Liu Yu-Yuan Guo 《Insect Science》 SCIE CAS CSCD 2010年第5期393-399,共7页
The rice stem borer, Chilo suppressalis Walker is one of the most important insect pests on rice in Asia, north Africa and southern Europe. Transgenic Bt rice has been developed in the laboratory with good resistance ... The rice stem borer, Chilo suppressalis Walker is one of the most important insect pests on rice in Asia, north Africa and southern Europe. Transgenic Bt rice has been developed in the laboratory with good resistance to this pest and other Lepidopteran insects, which will provide a possible alternative tool for this pest control. The full-length cDNAs encoding an aminopeptidase N (CsAPN) and a cadherin (CsCad) were cloned from C. suppressalis. CsAPN showed common features of, and high identities to, other insect APNs in its deduced amino acid sequence. Although a full-length cDNA encoding cadherin-like protein has been reported in GenBank, the newly isolated cadherin here (CsCad) showed some differences in its amino acid sequence, especially at the 7th cadherin repeat region (CR7), which indicated the newly isolated CsCad might be another allele. CsAPN and CsCad were successfully expressed in insect Tn cells, and the blot analysis showed these two proteins could bind Bt toxin CrylAb. The results will provide valuable information for the studies of toxin mode of action and the possible toxin resistance mechanisms in this pest. 展开更多
关键词 aminopeptidase N CADHERIN Chilo suppressalis heterologous expression tn cells
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