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Protease Inhibitor Cocktail Tablets

蛋白酶抑制剂混合物片

Company: Roche Diagnostics
Catalog#: 04693124001
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Real-time Base Excision Repair Assay to Measure the Activity of the 8-oxoguanine DNA Glycosylase 1 in Isolated Mitochondria of Human Skin Fibroblasts
Author:
Date:
2021-03-20
[Abstract]  

7,8-dihydro-8-oxoguanine (8-oxoG) is one of the most common and mutagenic oxidative DNA damages induced by reactive oxygen species (ROS). Since ROS is mainly produced in the inner membranes of the mitochondria, these organelles and especially the mitochondrial DNA (mtDNA) contained therein are particularly affected by this damage. Insufficient elimination of 8-oxoG can lead to mutations and thus to severe mitochondrial dysfunctions. To eliminate 8-oxoG, the human body uses the enzyme 8-oxoguanine DNA glycosylase 1 (OGG1), which is the main antagonist to oxidative damage to DNA. However, previous work suggests that the activity of the human OGG1 (hOGG1) decreases with age, leading to an age-related accumulation of 8-oxoG. A better understanding of the exact mechanisms of hOGG1 could lead

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[摘要]  [摘要] 7,8-二氢-8-氧鸟嘌呤(8-oxoG)是由活性氧(ROS)引起的最常见且诱变的氧化DN A损伤之一。由于ROS主要在线粒体的内膜中产生,因此这些细胞器,特别是其中所含的线粒体DNA(mtDNA)受到这种损害的特别影响。消除8-oxoG可能会导致突变,从而导致严重的线粒体功能障碍。为了消除8-oxoG,人体使用了8-氧代鸟嘌呤DNA糖基化酶1(OGG1),它是DNA氧化损伤的主要拮抗剂。但是,先前的研究表明,人类OGG1的活性(h OGG1)随着年龄的增长而减少,导致与年龄相关的8-oxoG积累。更好地了解hOGG1的确切机制可能会导致发现新的靶标,因此对于开发预防性疗法具有重要意义。因此,我们开发了一种实时碱基切除修复测定法,该测定法采用了专门设计的双链报告寡核苷酸来测量分离的线粒体裂解物中hOGG1的活性。这里介绍的该系统与经典测定法不同,在经典测定法中,可以通过实时测量hOGG1活性通过变性丙烯酰胺凝胶进行终点测定。另外,为了确定该双功能酶的每个酶促步骤的活性(N-糖基化酶和AP-裂解酶活性),还可以进行解链曲线分析。使用各种离心步骤从人成纤维细胞中分离线粒体后,将其裂解,然后与专门设计的报告寡核苷酸一起孵育。hOGG1活性的后续测量是在常规实时PCR系统中进行的。

[背景]人体是永久的损害案例。每天约10 ...

Generation of Polyclonal Specific Antibodies
Author:
Date:
2013-06-05
[Abstract]  Generation of antibodies specific for a protein of interest is a common method in many disciplines. This protocol details the steps in production of a polyclonal antibody in rabbits using a bacterially expressed fusion protein as an antigen. The protocol is generated based on data presented in Wirschell et al.(2013). [摘要]  对感兴趣的蛋白质特异性的抗体的产生是许多学科中的常见方法。 该方案详述了使用细菌表达的融合蛋白作为抗原在兔中产生多克隆抗体的步骤。 该协议基于Wirschell等人(2013)中提供的数据生成。

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