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dATP

dATP

Company: Takara Bio
Catalog#: 4026
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Use of Geminivirus for Delivery of CRISPR/Cas9 Components to Tobacco by Agro-infiltration
Author:
Date:
2017-04-05
[Abstract]  CRISPR/Cas9 system is a recently developed genome editing tool, and its power has been demonstrated in many organisms, including some plant species (Wang et al., 2016). In eukaryotes, the Cas9/gRNA complexes target genome sites specifically and cleave them to produce double-strand breaks (DSBs), which can be repaired by non-homologous end joining (NHEJ) pathway (Wang et al., 2016). Since NHEJ is error prone, mutations are thus generated. In plants, delivery of genome editing reagents is still challenging. In this protocol, we detail the procedure of a virus-based gRNA delivery system for CRISPR/Cas9 mediated plant genome editing (VIGE). This method offers a rapid and efficient way to deliver gRNA into plant cells, especially for those that are recalcitrant to ... [摘要]  CRISPR / Cas9系统是最近开发的基因组编辑工具,其功能已被证实在许多生物体中,包括一些植物物种(Wang等人,2016)。 在真核生物中,Cas9 / gRNA复合物特异性地靶向基因组位点并切割它们以产生双链断裂(DSB),其可以通过非同源末端连接(NHEJ)途径修复(Wang等人, 。,2016)。 由于NHEJ易出错,因此产生突变。 在植物中,基因组编辑试剂的递送仍然是挑战性的。 在本协议中,我们详细介绍了CRISPR / Cas9介导的植物基因组编辑(VIGE)的基于病毒的gRNA传递系统的过程。 该方法提供了将gRNA递送到植物细胞中的快速且有效的方式,特别是对于那些难以转基因农杆菌的方法。

已经报道了基于病毒的基因组编辑技术使用解构DNA病毒和RNA病毒(Baltes等人,2014; Ali等人,2015)。 最近,我们使用了一种完整的双因素病毒 - 卷心菜叶卷曲病毒(CaLCuV)(一种感染广西芥菜科的成员,包括花椰菜的二分酵母病毒),用于高效率 第一次(Yin等人,2015年),其主机之一的基因组编辑(Nicotiana benhamiana)首次进行基因组编辑。

Construction of Glycine Oxidase Mutant Libraries by Random Mutagenesis, Site Directed Mutagenesis and DNA Shuffling
Author:
Date:
2014-10-05
[Abstract]  Glyphosate, a broad spectrum herbicide widely used in agriculture all over the world, inhibits 5-enolpyruvylshikimate-3-phosphate synthase in the shikimate pathway, and glycine oxidase (GO) has been reported to be able to catalyze the oxidative deamination of various amines and cleave the C-N bond in glyphosate (Pedotti et al., 2009). Here, in an effort to improve the catalytic activity of the glycine oxidase that was cloned from a glyphosate-degrading marine strain of Bacillus cereus (BceGO), we used a bacteriophage T7 lysis-based method for high-throughput screening of oxidase activity and engineered the gene encoding BceGO by directed evolution. [摘要]  草甘膦,广泛应用于全世界农业的广谱除草剂在莽草酸途径中抑制5-烯醇丙酮酸莽草酸-3-磷酸合酶,并且已经报道甘氨酸氧化酶(GO)能够催化各种胺的氧化脱氨基, 切割草甘膦中的CN键(Pedotti等人,2009)。 在这里,为了改善从草甘膦降解的蜡状芽孢杆菌菌株(BceGO)克隆的甘氨酸氧化酶的催化活性,我们使用基于噬菌体T7裂解的方法, 通过筛选氧化酶活性并通过定向进化改造编码BceGO的基因。

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