Quantitative analysis of metabotropic glutamate receptor activation and modulation
代谢型谷氨酸受体激活和调节的定量分析
基本信息
- 批准号:10261585
- 负责人:
- 金额:$ 33.25万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-09-15 至 2025-08-31
- 项目状态:未结题
- 来源:
- 关键词:AffectAllosteric RegulationAnxietyArchitectureBinding SitesBiochemicalBiologicalBiological AssayBiophysicsBrainCalcium-Sensing ReceptorsCell membraneCellsChemicalsCholesterolComplementComplexComputing MethodologiesCoupledCouplingCysteine-Rich DomainDataDevelopmentDrug TargetingEnvironmentEpilepsyFamilyFluorescence Resonance Energy TransferFragile X SyndromeFunctional disorderFundingG Protein-Coupled Receptor SignalingG-Protein-Coupled ReceptorsGliomaGlutamatesGoalsGrantHeterodimerizationHumanIn VitroKnowledgeLearningLigand BindingLigandsLipidsMalignant NeoplasmsMediatingMembraneMembrane ProteinsMetabotropic Glutamate ReceptorsMethodologyMethodsMicroscopyModelingMolecularMolecular ConformationMotionMutagenesisNatureParkinson DiseasePatternPharmaceutical PreparationsPhysiologicalProcessPropertyProtein ConformationProtein DynamicsProtein EngineeringProtomerPsychotic Mood DisordersReceptor ActivationReceptor SignalingReporterResearchResolutionRoleSchizophreniaSensoryShapesSignal PathwaySignal TransductionSignaling MoleculeSiteSpectrum AnalysisStructureTechniquesTimeTissuesTransmembrane DomainVenus FlytrapWorkaddictionautism spectrum disorderbasecrosslinkdesigndimerdrug developmentglutamatergic signalinghuman diseaseinsightintercellular communicationlive cell imagingmembermetabotropic glutamate receptor 2millisecondmultidisciplinarynanometernervous system disorderneuroregulationnew technologynovelreceptorreceptor functionreconstitutionside effectsingle moleculesingle-molecule FRETspectroscopic surveytherapeutically effective
项目摘要
Project Summary
G protein-coupled receptors (GPCRs) are the largest family of membrane receptors in human and have
emerged as the largest family of drug targets with more than 35% of all drugs on the market functioning
through GPCRs. Despite their desirability, to date, many GPCR families remain undrugged, partly due to lack
of mechanistic knowledge about their activation and modulation. Metabotropic glutamate receptors (mGluRs)
are members of class C GPCRs and are critical modulators of glutamate signaling. Due to their widespread
expression in tissue and their central role they are among the most promising drug targets for the neurological
disorders such as fragile X syndrome, epilepsy, anxiety, schizophrenia as well as some cancers. Advances in
protein engineering and functional, structural and computational methods in the past twenty years have
provided insights into the architecture, signaling and expression patterns of mGluRs. However, a general
model of how ligands change the shape of mGluRs and how this conformational change is relayed across the
membrane and over 12 nm to activate specific signaling pathways is poorly understood. In this research we will
develop a novel technology that will allow us to watch a single mGluR protein while functioning in
physiological conditions, in real time. This will allow us to quantify the motions of different domains of the
receptor that are involved in signaling. Next, we will employ this approach to study how
synthetic
modulators
of
mGluR
signaling
affect
protein
conformation
and
dynamics
to
cholesterol and
affect receptor
signaling. This is a multi-disciplinary proposal where state-of-the-art in vitro single-molecule FRET (smFRET)
spectroscopy is complemented by live-cell imaging, protein engineering and biophysical and biochemical
methods. Once accomplished, the proposed research could provide a critical step towards rational design of
efficient drugs with fewer undesirable side effects. Furthermore, these studies will provide a general roadmap
for quantitative high-resolution structure-function studies of mammalian membrane proteins.
项目摘要
G蛋白偶联受体(GPCRs)是人类最大的膜受体家族,
成为最大的药物靶点家族,市场上所有药物中有35%以上发挥作用
通过GPCR。尽管它们是可取的,但到目前为止,许多GPCR家庭仍然不坚固,部分原因是缺乏
关于它们的激活和调节的机械知识。代谢型谷氨酸受体(mGluRs)
是C类GPCR的成员,是谷氨酸信号传导的关键调节剂。由于其广泛的
它们在组织中的表达及其核心作用,是神经系统疾病最有前途的药物靶点之一。
例如脆性X综合征、癫痫、焦虑、精神分裂症以及某些癌症。进展
蛋白质工程和功能,结构和计算方法在过去的二十年里,
提供了对mGluRs的结构、信号传导和表达模式的见解。然而,一位将军
配体如何改变mGluRs的形状,以及这种构象变化如何通过
膜和超过12 nm激活特定的信号传导途径的机制知之甚少。在这项研究中,我们将
开发一种新的技术,使我们能够观察一个单一的mGluR蛋白,同时发挥作用,
在真实的时间里的生理条件。这将使我们能够量化不同领域的运动,
参与信号传导的受体。接下来,我们将采用这种方法来研究如何
合成
调制器
的
mGluR
信令
影响
蛋白
构象
和
动力学
到
胆固醇和
情感感受器
发信号。这是一个多学科的建议,其中最先进的体外单分子FRET(smFRET)
光谱学是由活细胞成像、蛋白质工程和生物物理和生物化学补充的
方法.一旦完成,拟议的研究可以为合理设计
副作用少的有效药物。此外,这些研究将提供一个总体路线图,
用于哺乳动物膜蛋白的定量高分辨率结构-功能研究。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Reza Vafabakhsh其他文献
Reza Vafabakhsh的其他文献
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{{ truncateString('Reza Vafabakhsh', 18)}}的其他基金
Quantitative analysis of metabotropic glutamate receptor activation and modulation
代谢型谷氨酸受体激活和调节的定量分析
- 批准号:
10100895 - 财政年份:2020
- 资助金额:
$ 33.25万 - 项目类别:
Quantitative analysis of metabotropic glutamate receptor activation and modulation
代谢型谷氨酸受体激活和调节的定量分析
- 批准号:
10463681 - 财政年份:2020
- 资助金额:
$ 33.25万 - 项目类别:
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