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Rectangular cover slips

封面眼镜

Company: VWR
Catalog#: 631-1575
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Generation of Caenorhabditis elegans Transgenic Animals by DNA Microinjection
Author:
Date:
2017-10-05
[Abstract]  Microinjection is the most frequently used tool for genetic transformation of the nematode Caenorhabditis elegans, facilitating the transgenic expression of genes, genome editing by the clustered regularly interspersed short palindromic repeats (CRISPR)-Cas9 system, or transcription of dsRNA for RNA intereference (RNAi). Exogenous DNA is delivered into the developing oocytes in the germline of adult hermaphrodites, which then generate transgenic animals among their offspring. In this protocol, we describe the microinjection procedure and the subsequent selection of transgenic progeny. [摘要]  显微注射是线虫秀丽隐杆线虫遗传转化中最常用的工具,促进基因的转基因表达,通过聚集的定期散布的短回文重复序列(CRISPR)-Cas9系统的基因组编辑或转录 dsRNA用于RNA干扰(RNAi)。 外源DNA被递送到成年雌雄同株的种系中的发育中的卵母细胞中,然后在它们的后代中产生转基因动物。 在该方案中,我们描述了显微注射程序和随后的转基因后代选择。
【背景】在C.通过显微注射的DNA转化通常用于产生过表达或异位表达可以与标签(例如,绿色荧光蛋白[GFP])融合的基因的转基因动物,允许突变体的表型拯救和/或蛋白质的定位和功能的分析(Carter等人,1990; Chalfie等人,1994; Mello和Fire,1995)。聚集的定期散布的短回文重复(CRISPR)-Cas9系统的出现需要显微注射以通过引入点突变或插入/缺失突变来实现高度特异性的基因组编辑(概述于Dickinson和Goldstein,2016)。此外,该技术被应用于dsRNA的可诱导和/或组织特异性转录以便于遗传性RNA干扰(RNAi)(Tavernarakis等人,2000) ...

Immunocytochemical Detection of Recombinant Biomphalysin on Schistosoma mansoni Sporocysts
Author:
Date:
2013-11-20
[Abstract]  Schistosomiasis, or bilharzia, is a tropical disease caused by worms of the genus Schistosoma which infect about 200 million people. The life cycle of the parasite requires Biomphalaria, a specific genus of freshwater snails, as intermediate. Using an interactome approach employing B. glabrata plasma and S. mansoni primary sporocyst extracts, we identified a new cytolytic protein called Biomphalysin that displays similarities to members of the β-PFT superfamily known to form channels in targeted membranes. To investigate its mechanism of action, we produced a recombinant protein flanked by an N-terminal 6 histidine tag. Then, we investigated the ability of Biomphalysin to interact with the sporocyst tegument. This optimized protocol describes an ... [摘要]  血吸虫病或鼠伤寒沙菌是由感染约2亿人的蠕虫属引起的热带病。 寄生虫的生命周期需要作为中间体的淡水蜗牛的特定属的生物疟原虫。 使用采用em的interactome方法。 glabrata plasma和 我们鉴定了一种称为生物溶解素的新的溶细胞蛋白,其显示与已知在靶膜中形成通道的β-PFT超家族成员的相似性。 为了调查其作用机制,我们产生侧翼有N端6组氨酸标签的重组蛋白。 然后,我们调查了Biomphalysin与孢子囊体积相互作用的能力。 这个优化的协议描述免疫细胞化学程序检测组氨酸标记的重组蛋白在孢子被膜上。

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