摘要
为定向编辑丹参苯丙烷代谢途径中关键酶基因SmPAL1构建CRISPR/Cas9载体,通过在线软件设计CIRSPR/Cas9靶位点,采用体外酶切法进行体外靶点效率检测,筛选活性高的序列,构建到CRISPR/Cas9载体中。设计了3个可能的CRISPR/Cas9靶位点(SmPAL1-g1,SmPAL1-g2,SmPAL1-g3),通过体外靶点效率检测,其活性分别为53.3%,76.6%,10.0%,将筛选出活性较高的2个靶位点SmPAL1-g1和SmPAL1-g2构建到载体VK005-03中并命名为VK005-03-g1和VK005-03-g2。测序结果显示,设计的2个CRISPR/Cas靶位点全部插入到VK005-03中,载体构建成功。
To construct CRISPR/Cas9 vectors for the editing of SmPAL1 in the phenylpropane metabolic pathway of Salvia miltiorrhiza, CIRSPR/Cas9 target sites of SmPAL1 were designed by online software. Its target efficiencies were detected in vitro by enzyme digestion and sequences with highly efficiency were constructed into CRISPR/Cas9 vectors. Three possible CRISPR target sequences(SmPAL1-g1, SmPAL1-g2, SmPAL1-g3) were designed and the enzyme digestion efficiencies were 53.3%, 76.6% and 10.0%. SmPAL1-g1 and SmPAL1-g2 were constructed into vector VK005-03 named as VK005-03-g1 and VK005-03-g2. The results of sequencing showed that the two CRISPR/Cas target sequences were all constructed into VK005-03. Here we first laid the foundation for the study of SmPAL1 and provided an effective strategy for the screening of sgRNA.
引文
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