Cloning and expression in Escherichia coli of an insecticidal crystal protein gene from Bacillus thuringiensis var. aizawai HD-133.
Cloning and expression in Escherichia coli of an insecticidal crystal protein gene from Bacillus thuringiensis var. aizawai HD-133.
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苏云金芽孢杆菌杀虫晶体蛋白基因在大肠杆菌中的克隆和表达
DOI:
10.1099/00221287-133-10-2921
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发表时间:
1987
期刊:
影响因子:
--
通讯作者:
D. Ellar
中科院分区:
文献类型:
--
作者:
K. Chak;D. Ellar
Using a gene probe derived from the cloned var. sotto insecticidal crystal protein (ICP) gene, we have cloned a Bacillus thuringiensis var. aizawai HD-133 ICP gene in Escherichia coli. The gene encodes a polypeptide that is toxic to Lepidoptera in vivo and in vitro. The protein is expressed at a level sufficient to produce phase-bright inclusions in recombinant E. coli strains, and these inclusions can be partially purified using discontinuous sucrose density gradients. Immunoblotting shows that the inclusions contain a 135 kDa polypeptide which reacts strongly with antiserum raised against the B. thuringiensis var. kurstaki HD-1 P1 polypeptide.