HYBRID STRUCTURE DETERMINATION OF TRAFFICKING COMPLEXES BY SAXS, CRYSTALLOGRAPHY

通过 SAXS、晶体学测定贩运复合物的混合结构

• 批准号: 7954430
• 负责人: JAMES Bryant HURLEY
• 金额: $ 0.02万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-03-01 至 2010-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7954430
• 关键词: Antigen Presentation; Biogenesis; Cereals; Complex; Computer Retrieval of Information on Scientific Projects Database; Core Assembly; Crystallography; Endosomes; Funding; Grant; HIV Budding; Homology Modeling; Hybrids; Individual; Institution; Membrane Protein Traffic; Modeling; Organelles; Pathway interactions; Physiological Processes; Process; Research; Research Personnel; Resources; Series; Signal Transduction; Solutions; Source; Structure; United States National Institutes of Health; base; protein complex; simulation; structural biology; synchrotron radiation; trafficking

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Membrane trafficking pathways are essential for normal physiological processes such as signal transduction, antigen presentation, organelle biogenesis, and many others, and for pathophysiological processes such as HIV budding. Membrane trafficking via endosomes is carried out by a series of multi-protein complexes, including the ESCRT complexes and the retromer complex. We have obtained a series of crystal structures of the cores of these assemblies, and in combination with the structures of individual domains and homology modeling, models for the complete structures can be generated. The models have been assessed by comparison to hydrodynamic studies of multiple truncation constructs, providing constraints on the solution structures of the intact complexes. We have applied coarse-grained Monte Carlo simulations using residue-based potentials with rigid domains and core structures to model the assemblies.

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