Regulation of Mitochondrial Function by Orphan Protein Phosphatases
孤儿蛋白磷酸酶对线粒体功能的调节
基本信息
- 批准号:10405514
- 负责人:
- 金额:$ 43.1万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2013
- 资助国家:美国
- 起止时间:2013-03-15 至 2024-05-31
- 项目状态:已结题
- 来源:
- 关键词:AcuteAffectAlzheimer&aposs DiseaseAreaAwardBiochemicalBiochemistryBiological AssayBirthCRISPR/Cas technologyCell LineChronicConsequentialismCoupledCustomDefectDiseaseEnzymatic BiochemistryEnzymesEventExhibitsFunctional disorderGeneticGoalsHeartHeart failureHepatocyteHumanHuman Cell LineIn VitroInvestigationLaboratoriesLeadLibrariesLifeLightLiverMalignant NeoplasmsMass Spectrum AnalysisMeasurementMedicineMetabolicMetabolic DiseasesMetabolic PathwayMetabolic stressMetabolic syndromeMetabolismMethodsMitochondriaMitochondrial MatrixMitochondrial ProteinsModificationMorphologyMotivationMusNatureNon-Insulin-Dependent Diabetes MellitusObesityOrganellesOrphanParkinson DiseasePathogenicityPhenotypePhosphopeptidesPhosphoproteinsPhosphoric Monoester HydrolasesPhosphorylationPhosphorylation SitePhosphotransferasesPhysiologicalPhysiologyProcessProtein ImportProtein phosphataseProteinsProteomicsRegulationResourcesRoleSignaling ProteinSiteTestingTissuesTranslationsWorkYeastscomparativedesignempoweredfallsfatty acid oxidationhuman diseaseinsightmitochondrial dysfunctionmitochondrial metabolismmultiple omicsneonatal deathnon-alcoholic fatty liver diseasenovel therapeutic interventionphosphoproteomicsprotein functionprotein protein interactionproteomic signaturepyruvate dehydrogenasestemtherapeutic target
项目摘要
PROJECT SUMMARY
Mitochondria are centers of metabolism whose activities need to be calibrated to meet changing cellular needs.
General dysfunction of these organelles is implicated in many common human disorders, including Parkinson’s,
Alzheimer’s, various cancers, metabolic syndrome, type 2 diabetes (T2D), obesity, non-alcoholic fatty liver
disease (NAFLD), and heart failure, most often through unclear means. Defining the pathogenic mitochondrial
alterations that contribute to these metabolic disorders and devising new therapeutic strategies to rectify them
represent principal challenges in mitochondrial medicine. A potential contributor to this dysfunction is aberrant
intra-mitochondrial protein phosphorylation—a process recognized as critical for pyruvate dehydrogenase
regulation for more than 50 years, but relatively unexplored otherwise. Recent efforts from our laboratories and
others have now revealed that mitochondrial proteins are replete with dynamic phosphorylation that changes
reproducibly between healthy and diseased states, and that phosphorylation can alter the activities of proteins
involved in core metabolic pathways. We have also now connected select phosphorylation events to poorly
characterized matrix protein phosphatases, thereby beginning to establish a mechanistic framework for
understanding mitochondrial protein phosphorylation and its effects on metabolic activities. Given these
emerging findings, the premise of this project is that reversible phosphorylation may be widely important in
calibrating mitochondrial metabolism, and that its mismanagement could contribute to the pathophysiology of
mitochondria-related disorders. Rigorous new efforts to reveal how phosphorylation affects mitochondrial protein
function and to define the phosphatases that target each site may ultimately enable a new therapeutic strategy
focused on manipulation of the mitochondrial phosphorylation network. The work proposed here is designed to
take significant steps toward these goals. In particular, the contributions of our efforts will be 1) to define the
physiological functions and direct biochemical substrates of Pptc7, a poorly characterized mitochondrial matrix
phosphatase whose disruption causes a severe fatty acid oxidation (FAO)-like disorder and neonatal death, 2)
to establish the mechanistic effects of phosphorylation on putative Pptc7 substrates of outstanding importance
to FAO and protein import, and 3) to begin systematically connecting the full set of orphan mitochondrial
phosphatases to candidate substrates and metabolic processes, thereby opening up a largely untapped area of
mitochondrial metabolic regulation. Altogether, through a comprehensive approach that combines mammalian
physiology, omics-level analyses, and rigorous biochemistry, we aim to make definitive connections between
mitochondrial phosphatases and their substrates, establish a broad framework for understanding the role of this
post-translation modification in calibrating mitochondrial activities, and ultimately pave the way for a new
therapeutic strategy to rectify mitochondrial dysfunction.
项目摘要
线粒体是新陈代谢的中心,其活动需要校准以满足不断变化的细胞需求。
这些细胞器的一般功能障碍与许多常见的人类疾病有关,包括帕金森氏症,
阿尔茨海默氏症、各种癌症、代谢综合征、2型糖尿病(T2 D)、肥胖、非酒精性脂肪肝
疾病(NAFLD)和心力衰竭,最常见的是通过不明确的手段。
改变,有助于这些代谢紊乱,并制定新的治疗策略,以纠正他们
代表线粒体医学的主要挑战。这种功能障碍的一个潜在因素是异常的
线粒体内蛋白磷酸化--一个被认为是丙酮酸脱氢酶关键的过程
监管已有50多年的历史,但在其他方面相对未经探索。我们的实验室和
其他人现在已经揭示了线粒体蛋白质充满了动态磷酸化,
在健康和疾病状态之间可重复,磷酸化可以改变蛋白质的活性,
参与核心代谢途径。我们现在也已经将选择性磷酸化事件与
特征的基质蛋白磷酸酶,从而开始建立一个机制框架,
了解线粒体蛋白磷酸化及其对代谢活动的影响。鉴于这些
这项研究的前提是,可逆的磷酸化可能在
校准线粒体代谢,其管理不善可能导致
线粒体磷酸化相关疾病。严谨的新努力揭示磷酸化如何影响线粒体蛋白
功能和确定靶向每个位点的磷酸酶可能最终实现新的治疗策略
集中在线粒体磷酸化网络的操纵。这里提出的工作旨在
为实现这些目标采取重大步骤。特别是,我们的努力将有助于1)确定
Pptc 7的生理功能和直接生化底物,一种特征不佳的线粒体基质
磷酸酶,其破坏导致严重脂肪酸氧化(FAO)-类脂肪酸酶紊乱和新生儿死亡,2)
为了确定磷酸化对假定的Pptc 7底物的重要作用机制,
3)开始系统地连接全套孤儿线粒体
磷酸酶的候选底物和代谢过程,从而开辟了一个很大程度上尚未开发的领域,
总而言之,通过一种综合的方法,
生理学、组学--细胞水平的分析和严格的生物化学,我们的目标是在以下方面建立明确的联系:
线粒体磷酸酶及其底物,建立了一个广泛的框架,了解这一作用,
翻译后修饰校准线粒体活动,并最终铺平了道路,
治疗策略,以纠正线粒体功能障碍。
项目成果
期刊论文数量(11)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Intelligent data acquisition blends targeted and discovery methods.
- DOI:10.1021/pr401278j
- 发表时间:2014-04-04
- 期刊:
- 影响因子:4.4
- 作者:Bailey, Derek J.;McDevitt, Molly T.;Westphall, Michael S.;Pagliarini, David J.;Coon, Joshua J.
- 通讯作者:Coon, Joshua J.
Mitochondrial DNA variant in COX1 subunit significantly alters energy metabolism of geographically divergent wild isolates in Caenorhabditis elegans.
- DOI:10.1016/j.jmb.2014.02.009
- 发表时间:2014-05-29
- 期刊:
- 影响因子:5.6
- 作者:Dingley, Stephen D.;Polyak, Erzsebet;Ostrovsky, Julian;Srinivasan, Satish;Lee, Icksoo;Rosenfeld, Amy B.;Tsukikawa, Mai;Xiao, Rui;Selak, Mary A.;Coon, Joshua J.;Hebert, Alexander S.;Grimsrud, Paul A.;Kwon, Young Joon;Pagliarini, David J.;Gai, Xiaowu;Schurr, Theodore G.;Huettemann, Maik;Nakamaru-Ogiso, Eiko;Falk, Marni J.
- 通讯作者:Falk, Marni J.
A quantitative map of the liver mitochondrial phosphoproteome reveals posttranslational control of ketogenesis.
- DOI:10.1016/j.cmet.2012.10.004
- 发表时间:2012-11-07
- 期刊:
- 影响因子:29
- 作者:Grimsrud PA;Carson JJ;Hebert AS;Hubler SL;Niemi NM;Bailey DJ;Jochem A;Stapleton DS;Keller MP;Westphall MS;Yandell BS;Attie AD;Coon JJ;Pagliarini DJ
- 通讯作者:Pagliarini DJ
A Gly-zipper motif mediates homodimerization of the transmembrane domain of the mitochondrial kinase ADCK3.
- DOI:10.1021/ja505017f
- 发表时间:2014-10-08
- 期刊:
- 影响因子:15
- 作者:Khadria, Ambalika S.;Mueller, Benjamin K.;Stefely, Jonathan A.;Tan, Chin Huat;Pagliarini, David J.;Senes, Alessandro
- 通讯作者:Senes, Alessandro
Identification and Quantification of Murine Mitochondrial Proteoforms Using an Integrated Top-Down and Intact-Mass Strategy.
- DOI:10.1021/acs.jproteome.8b00469
- 发表时间:2018-10-05
- 期刊:
- 影响因子:4.4
- 作者:Schaffer LV;Rensvold JW;Shortreed MR;Cesnik AJ;Jochem A;Scalf M;Frey BL;Pagliarini DJ;Smith LM
- 通讯作者:Smith LM
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David J Pagliarini其他文献
David J Pagliarini的其他文献
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{{ truncateString('David J Pagliarini', 18)}}的其他基金
Systems-to-structure approaches for defining mitochondrial protein function
定义线粒体蛋白质功能的系统到结构方法
- 批准号:
10592293 - 财政年份:2019
- 资助金额:
$ 43.1万 - 项目类别:
Systems-to-structure approaches for defining mitochondrial protein function
定义线粒体蛋白质功能的系统到结构方法
- 批准号:
10370341 - 财政年份:2019
- 资助金额:
$ 43.1万 - 项目类别:
Technologies for PTM discovery and functional mapping p. 505
PTM 发现和功能映射技术
- 批准号:
8998786 - 财政年份:2016
- 资助金额:
$ 43.1万 - 项目类别:
Driving Biomedical Projects 1-Mitochondrial phophorylatioon signaling
推动生物医学项目 1-线粒体磷酸化信号传导
- 批准号:
8998787 - 财政年份:2016
- 资助金额:
$ 43.1万 - 项目类别:
Establishing the role of the atypical kinase ADCK3 in mitochondrial metabolism
确定非典型激酶 ADCK3 在线粒体代谢中的作用
- 批准号:
8900321 - 财政年份:2014
- 资助金额:
$ 43.1万 - 项目类别:
Establishing the role of the atypical kinase ADCK3 in mitochondrial metabolism
确定非典型激酶 ADCK3 在线粒体代谢中的作用
- 批准号:
8765976 - 财政年份:2014
- 资助金额:
$ 43.1万 - 项目类别:
Regulation of Mitochondrial Function by Orphan Protein Phosphatases
孤儿蛋白磷酸酶对线粒体功能的调节
- 批准号:
10221674 - 财政年份:2013
- 资助金额:
$ 43.1万 - 项目类别:
Regulation of Mitochondrial Metabolism by Post-Translational Modifications
翻译后修饰对线粒体代谢的调节
- 批准号:
8482787 - 财政年份:2013
- 资助金额:
$ 43.1万 - 项目类别:
Regulation of Mitochondrial Metabolism by Post-Translational Modifications
翻译后修饰对线粒体代谢的调节
- 批准号:
9262822 - 财政年份:2013
- 资助金额:
$ 43.1万 - 项目类别:
Quantitative Mitochondrial Proteomics of Healthy and Diabetic Mice
健康和糖尿病小鼠的定量线粒体蛋白质组学
- 批准号:
7937890 - 财政年份:2009
- 资助金额:
$ 43.1万 - 项目类别:
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