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Cloning and expression of acetylcholinesterase in brain of mice
Author(s): 
Pages: 597-601
Year: Issue:  4
Journal: Journal of Central China Normal University(Natural Sciences)

Keyword:  乙酰胆碱酯酶RT-PCRcDNA克隆表达;
Abstract: 乙酰胆碱酯酶(AChE)作为有机磷和氨基甲酸酯类农药的最适反应底物,在农药残留的快速检测中得到广泛应用,本实验根据家鼠AChE全基因序列设计并合成一对特异性引物,对昆明鼠脑组织AchE进行RT-PCR扩增,扩增产物经T-载体克隆、酶切鉴定和测序分析,结果表明:昆明鼠AchE编码序列长1 845 bp.经BLAST比对发现该序列与已报道序列(No.BC046327)的同源性为99.78%.构建原核重组表达质粒pET-AChE,并在E.coli中得到高效表达,表达蛋白的分子量约为68 000.运用改进的Ellman法成功检测到时重组表达蛋白的活性.
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