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MCO-5AC-PE CO2 incubator

MCO-5AC-PE CO2 incubator

Company: Panasonic Biomedical
Catalog#: MCO-5AC-PE
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MPM-2 Mediated Immunoprecipitation of Proteins Undergoing Proline-directed Phosphorylation
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2016-12-05
[Abstract]  Immunoprecipitation (IP) represents a widely utilized biochemical method to isolate a specific protein from a complex mixture taking advantage of an antibody that specifically recognizes that particular target molecule. This procedure is extremely versatile and can be applied to concentrate a specific protein, to identify interacting partners in complex with it or to detect post-translational modifications. The mitotic protein monoclonal 2 (MPM-2) is an antibody originally raised against extracts of synchronized mitotic HeLa cells to identify proteins selectively present in mitotic, and not in interphase-cells (Davis et al., 1983). MPM-2 recognizes phosphorylated serine or threonine residues followed by proline (pS/T-P), consensus epitopes generated by the concerted action of ... [摘要]  免疫沉淀(IP)代表广泛使用的生物化学方法,以利用特异性识别特定靶分子的抗体从复杂混合物中分离特异性蛋白质。该程序是非常通用的,可以应用于集中特定蛋白质,识别与其复合的相互作用的配偶体或检测翻译后修饰。有丝分裂蛋白单克隆2(MPM-2)是最初针对同步有丝分裂HeLa细胞的提取物产生的抗体,以鉴定选择性存在于有丝分裂中的蛋白质,而不是在间期细胞中(Davis等,1983)。 MPM-2识别磷酸化的丝氨酸或苏氨酸残基,随后是脯氨酸(pS / T-P),由脯氨酸指导的蛋白激酶和磷酸酶的共同作用产生的共有表位(Lu等,2002)。这些可逆磷酸化事件已经出现以通过促进目标上的构象变化来控制各种细胞过程,这不仅仅是由于磷酸化事件本身。这些基序一旦被磷酸化,就能够招募Pin1(肽基 - 脯氨酰异构酶NIMA相互作用蛋白1)(Lu等人,1996; Lu和Zhou,2007),这是一个促进肽键上的顺式/反式异构化反应的伴侣,在基础功能不同的构象之间切换底层(Lu,2004; Wulf等人,2005)。该方案描述了使用支架分子突触后密度蛋白-95(PSD-95)(Chen等人,2005),神经元Pin1靶(Antonelli等,2016)作为示例的基于MPM-2的免疫沉淀策略以说明详细的程序。
【背景】由MPM-2抗体识别的抗原的鉴定代表了发现经过磷酸化脯氨酰异构化调控机制的靶分子的有用起点。 ...

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