Center for the Structural Biology of Cellular Host Elements in Egress, Trafficking, and Assembly of HIV (CHEETAH Center)

摘要 我们的HIV病毒外逃、运输和组装中细胞宿主成分的结构生物学中心 (Cheetah)研究艾滋病毒与宿主之间的相互作用，涉及病毒复制、贩运和传播。我们的研究 关注HIV-1生物学的四个关键方面：1)HIV组装和宿主萌发限制，2)HIV传播 在整个动物和体外模型中，3)病毒核心的细胞内运输、转化和限制， 病毒潜伏期和免疫受体研究的新方向。在每种情况下，我们的目标都是了解：1) 相关分子机器，2)招募和利用寄主途径的机制，以及3) 底层组织、细胞组件和病毒组件的结构。另外两个重要主题 该中心的主要工作包括：1)动态过程的研究，从病毒生命中的关键分子转变 循环到病毒在整个动物中的传播和传播的研究；2)开发和应用 研究各种分辨率、空间和细胞结构的病毒和细胞结构的互补方法 时间维度和生物背景。 与此同时，我们正在开发和应用工具，这些工具将推动结构生物学和 HIV分子病毒学，包括：1)转化冷冻-EM重建的新方法，2)相关 细胞内病毒复合体的光电子冷冻断层成像(Clem-ECT)方法，3) 成像HIV在人源化小鼠和灵长类组织中的传播，以及4)设计能够 模仿病毒的组装、释放和进入。 所有这些努力都得到了最先进的核心的支持：1)生产生物试剂，2)执行 结构生物学，3)光谱和成像，4)计算和数据科学，5)生物模型。 我们中心的努力还通过：1)与其他研究人员和 P50中心，2)合作发展奖计划，将资助有前途的年轻研究人员 谁将增强与我们中心的互动并从中受益，以及3)中心的教育计划 实习生。 我们的总体目标是继续将艾滋病毒发展成为一个无与伦比的模型系统，用于研究人类如何 病毒与宿主相互作用，并为开发新的抗病毒疗法奠定基础。

ABSTRACT Our Center for the Structural Biology of Cellular Host Elements in Egress, Trafficking, and Assembly of HIV (CHEETAH) studies HIV-Host interactions involved in viral replication, trafficking and transmission. Our studies focus on four key aspects of HIV-1 biology: 1) HIV assembly and host budding restrictions, 2) HIV transmission in whole animals and in vitro models, 3) Intracellular trafficking, transformations and restriction of the viral core, and 4) New directions in viral latency and immune receptors. In each case, we aim to understand: 1) The relevant molecular machines, 2) The mechanisms by which host pathways are recruited and utilized, and 3) The structures of underlying tissues, cellular assemblies, and viral components. Two other overarching themes of the Center are: 1) Studies of dynamic processes, ranging from key molecular transformations in the viral life cycle to studies of virus transmission and dissemination in whole animals, and 2) Developing and applying complementary approaches for studying viral and cellular structures across a range of resolutions, spatial and temporal dimensions, and biological contexts. In parallel, we are developing and applying tools that will advance important frontiers in structural biology and HIV molecular virology, including: 1) New approaches for transforming cryo-EM reconstructions, 2) Correlated light and electron cryotomography (CLEM-ECT) approaches for visualizing viral complexes inside cells, 3) Imaging HIV transmission in humanized mice and primate tissues, and 4) Designing new proteins that can mimic viral assembly, release, and entry. All of these efforts are supported by state-of-the-art Cores for: 1) Producing biological reagents, 2) Performing structural biology, 3) Spectroscopy and imaging, 4) Computation and data science, and 5) Biological models. The efforts of our Center are also extended through: 1) Extensive collaborations with other researchers and P50 Centers, 2) A Collaborative Development Awards program that will fund promising young investigators who will enhance and benefit from interactions with our Center, and 3) Educational programs for Center trainees. Our overall goals are to continue to develop HIV into an unparalleled model system for studying how a human virus interacts with its host, and to lay the groundwork for the development of new antiviral therapies.