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Cubis® Precision Balance

Cubis® Precision Balance

Company: Sartorius
Catalog#: MSA12201S-000-D0
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In vitro AMPylation Assays Using Purified, Recombinant Proteins
Author:
Date:
2017-07-20
[Abstract]  Post-translational protein modifications (PTMs) orchestrate the activity of individual proteins and ensure their proper function. While modifications such as phosphorylation or glycosylation are well understood, more unusual modifications, including nitrosylation or AMPylation remain comparatively poorly characterized. Research on protein AMPylation–which refers to the covalent addition of an AMP moiety to the side chains of serine, threonine or tyrosine–has undergone a renaissance (Yarbrough et al., 2009; Engel et al., 2012; Ham et al., 2014; Woolery et al., 2014; Preissler et al., 2015; Sanyal et al., 2015; Truttmann et al., 2016; Truttmann et al., 2017). The identification and characterization of filamentation ... [摘要]  翻译后蛋白质修饰(PTM)协调各种蛋白质的活性并确保其功能正常。虽然诸如磷酸化或糖基化的修饰被很好地理解,但是更不寻常的修饰,包括亚硝基化或AMP化仍然比较差的表征。关于蛋白质AMP化的研究 - 其是将AMP部分共价加成到丝氨酸,苏氨酸或酪氨酸的侧链,已经经历了复兴(Yarbrough et al。,2009; Engel et al。 2012年; Ham等人,2014年; Woolery等人,2014年; Preissler等人,2015年; ; Sanyal等人,2015; Truttmann等人,2016; Truttmann等人,2017)。鉴定和表征含丝状(fic)结构域的AMPylases引起了对该PTM的新兴趣(Kinch等人,2009; Yarbrough等人,2009)。基于最近的体内和体外研究,我们现在知道分泌的细菌AMPylase共价连接AMP到Rho家族GTP酶的成员,而后生动物AMPylases修饰HSP70家族蛋白在细胞质和内质网(ER)(Itzen等人,2011; Hedberg和Itzen,2015; Truttmann和Ploegh,2017)。认为AMP化学将HSP70置于不能参与蛋白质重折叠反应的引发剂但瞬时失活的状态(Preissler等人,2015)。 ...

In Gel Kinase Assay
Author:
Date:
2017-03-05
[Abstract]  Proper spatiotemporal regulation of protein phosphorylation in cells and tissues is required for normal development and homeostasis. We present the protocol ‘In Gel Kinase Assay’, which is useful for protein kinase activity measurements from crude protein extracts. We have successfully used ‘In Gel Kinase Assay’ protocol to show that the Arabidopsis thaliana sextuple mutant in the PYRABACTIN RESISTANCE1/PYR1-LIKE/REGULATORY COMPONENTS OF ABA RECEPTORS (PYR/PYL/RCAR-ABA receptors; line pyr/pyl112458) is impaired in ABA-mediated activation of SnRK2.2, SnRK2.3 and OST1/SnRK2.6, as much as the triple mutant snrk2.2/2.3/2.6 (Gonzalez-Guzman et al., 2012). [摘要]  正常发育和体内平衡需要细胞和组织中蛋白质磷酸化的适时时空调节。我们提出方案“凝胶激酶测定”,其可用于粗蛋白质提取物的蛋白激酶活性测量。我们已经成功地使用“凝胶激酶测定”方案来证明在ABA受体(PYR / PYL / RCAR-ABA受体)的PYRABACTIN RESISTANCE1 / PYR1-样/调节组分中的拟南芥线条pyr / pyl112458 )在ABA介导的SnRK2.2,SnRK2.3和OST1 / SnRK2.6的活化中受损,多达三重突变体snrk2.2 / 2.3 / 2.6 (Gonzalez-Guzman等人,2012)。

背景 植物激素脱落酸(ABA)是涉及植物生长发育以及植物对非生物和生物胁迫的反应的关键信号。 ABA感知和信号通路由ABA受体(PYR / PYL / RCAR-ABA受体)的PYRABACTIN RESISTANCE1 / PYR1-调节组分,PP2C磷酸酶和SnRK2s激酶组成(在Antoni等人, ,,2011)。模块受体-ABA-磷酸酶通过调节ABA激活的SnRK2而以配体依赖的方式控制磷酸化信号级联。反过来,SnRK2s激酶使细胞核和细胞质中的无数效应物从转录因子(例如,ABFs)到离子通道(例如)磷酸化, ...

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