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10-ml syringe

10 mL BD Luer-LokTM尖端控制注射器

Company: BD
Catalog#: 309695
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In vitro Analysis of Ubiquitin-like Protein Modification in Archaea
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Date:
2018-05-20
[Abstract]  The ubiquitin-like (Ubl) protein is widely distributed in Archaea and involved in many cellular pathways. A well-established method to reconstitute archaeal Ubl protein conjugation in vitro is important to better understand the process of archaeal Ubl protein modification. This protocol describes the in vitro reconstitution of Ubl protein modification and following analysis of this modification in Haloferax volcanii, a halophilic archaeon serving as the model organism. [摘要]  泛素样(Ubl)蛋白广泛分布于古细菌中并参与许多细胞途径。 为了更好地理解古细菌Ub1蛋白质修饰的过程,重建体外古细菌Ubl蛋白质缀合物的完善方法是很重要的。 该协议描述了Ubl蛋白质修饰的体外重建以及在作为模型生物的嗜盐古细菌Haloferax volcanii 中对这种修饰进行分析。

【背景】泛素(Ub)与靶蛋白共价连接的过程被称为泛素化,其控制真核细胞中大量的细胞过程(Glickman和Ciechanover,2002; Komander和Rape,2012)。遍在蛋白化由一系列酶(包括Ub激活酶(E1),Ub结合酶(E2s)和Ub连接酶(E3s))催化。泛素化的体外重建是确定酶之间或E3与蛋白质底物之间特异性的有用测定法(Zhao等人,2012)。在古细菌中,Ubl蛋白SAMP采用Ub折叠,并且与E1样酶UbaA催化的蛋白靶标异肽连接[Maupin-Furlow,(2014)综述]。尽管E1同系物在古细菌中广泛存在,但基于一级序列比较,在大多数古细菌中未预测经典E2或E3酶。我们最近对Haloferax volcanii的研究表明甲硫氨酸亚砜还原酶A(MsrA)是Ubl蛋白质修饰(sampylation)与UbaA一起在体内温和的氧化条件下和< (体外)(fu="">

Conditional Knockdown of Proteins Using Auxin-inducible Degron (AID) Fusions in Toxoplasma gondii
Author:
Date:
2018-02-20
[Abstract]  Toxoplasma gondii is a member of the deadly phylum of protozoan parasites called Apicomplexa. As a model apicomplexan, there is a great wealth of information regarding T. gondii’s 8,000+ protein coding genes including sequence variation, expression, and relative contribution to parasite fitness. However, new tools are needed to functionally investigate hundreds of putative essential protein coding genes. Accordingly, we recently implemented the auxin-inducible degron (AID) system for studying essential proteins in T. gondii. Here we provide a step-by-step protocol for examining protein function in T. gondii using the AID system in a tissue culture setting. [摘要]  弓形虫是原生动物寄生虫称为Apicomplexa致命门的一员。 作为一个复杂的模型,关于T的信息有很多。 gondii的8,000多种蛋白质编码基因,包括序列变异,表达和对寄生虫适应的相对贡献。 然而,需要新的工具来功能性地调查数百个推定的必需蛋白质编码基因。 因此,我们最近实施了生长素诱导降解(AID)系统来研究T中的基本蛋白质。弓形虫。 在这里,我们提供了一个检查蛋白质功能的一步一步的协议。 在组织培养环境中使用AID系统。

【背景】生长素是一类通过靶向某些蛋白质在植物中进行蛋白酶体降解而发出信号的植物激素(Teale等人,2006)。 Kohei Nishimura等人具有将该植物特异性信号传导系统的组分转移到其他真核生物中用于有兴趣的蛋白质(POI)的条件调节,创建生长素诱导降解(AID)系统的聪明想法(Nishimura等人,2009)。这个系统已经被成功地用于几种真核生物,包括疟原虫疟原虫(Kreidenweiss et al。,2013; Philip和Waters,2015)。只需要两个转基因成分来实现这个系统,称为转运抑制剂反应1(TIR1)的植物生长素受体和用AID标记的POI。用生长素(例如,3-吲哚乙酸/ IAA)处理活化SCF ...

Aorta Atherosclerosis Lesion Analysis in Hyperlipidemic Mice
Author:
Date:
2016-06-05
[Abstract]  Atherosclerosis is a chronic inflammatory disease of large and medium-sized arteries. Apolipoprotein E-deficient (ApoE-/-) mice are used as experimental models to study human atherosclerosis. ApoE-/- mice are constitutively hyperlipidemic and develop intima plaques that resemble human plaques. Various issues including experimental design for lesion analysis, dietary conditions, isolation of the aorta, staining methods, morphometry, group size, age, the location within the arterial tree, and statistical analyses are important parameters that need to be addressed to obtain robust data. Here, we provide detailed methods to quantify aorta atherosclerosis. [摘要]  动脉粥样硬化是大和中等大小动脉的慢性炎性疾病。 载脂蛋白E缺陷(ApoE -/-/- )小鼠用作实验模型来研究人动脉粥样硬化。 ApoE -/-/- 小鼠是组成性高脂血症并且发展类似于人噬斑的内膜斑块。 包括病变分析的实验设计,饮食条件,主动脉分离,染色方法,形态测定,组大小,年龄,动脉树内的位置和统计分析的各种问题是需要解决以获得鲁棒数据的重要参数。 在这里,我们提供详细的方法来量化主动脉粥样硬化。

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