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Carolyn Machamer, Ph.D.
The Machamer Lab is interested in the structure and function of the Golgi complex, an ubiquitous eukaryotic organelle that plays a central role in post-translational processing and sorting of newly synthesized proteins and lipids in the secretory pathway. One goal of our research is to understand the role of this structure in Golgi function by targeting and function of resident Golgi proteins. The other research interest in the lab is the assembly mechanism of coronaviruses, enveloped viruses that bud into Golgi compartments. We are addressing how coronaviruses target their envelope proteins to Golgi membranes, and how they interact with each other at the virus assembly site. We are also exploring how coronaviruses are exocytosed after they bud into the Golgi lumen. Our long-term goal is to understand the advantages of intracellular assembly for coronaviruses.
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Devreotes Laboratory
The Devreotes Laboratory is engaged in genetic analysis of chemotaxis in eukaryotic cells. Our long-term goal is a complete description of the network controlling chemotactic behavior. We are analyzing combinations of deficiencies to understand interactions among network components and carrying out additional genetic screens to identify new pathways involved in chemotaxis. A comprehensive understanding of this fascinating process should lead to control of pathological conditions such as inflammation and cancer metastasis.
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Espenshade Lab
The Espenshade Lab uses a multi-organismal and multidisciplinary approach to understand how eukaryotic cells measure insoluble lipids and dissolved gases. We have chosen cholesterol and oxygen as our model molecules, based on their essential roles in cell function and the importance of their proper homeostasis for human health.
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Green Lab
Work in the Green Lab is centered on the ribosome. The overall fidelity of protein synthesis appears to be limited by the action of the ribosome, which is the two-subunit macromolecular machine responsible for decoding and translating messenger RNAs (mRNAs) into protein in all organisms. Our work is divided into four general project areas. The longest-standing research area concerns the interactions of eubacterial ribosomes and release factors. The goal is to understand the mechanism of action of release factors on the ribosome. A second research area involves biochemical and structure/function studies of the miRNA pathway, particularly the mechanism of action of the Argonaute proteins and their interacting factors. A third area of work in the lab is centered around regulation of eukaryotic translation, specifically in understanding the mechanism behind various mRNA quality control pathways and the interactions of proteins therein, as well as with the ribosome. The newest area of rese...arch in the lab extends our strengths in ribosome biochemistry to characterize the translation status of the cell using the ribosome profiling. We are using this technique to better understand the role of several factors involved in eukaryotic and prokaryotic translation fidelity. view less
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Jun O. Liu Laboratory
The Jun O. Liu Laboratory tests small molecules to see if they react in our bodies to find potential drugs to treat disease. We employ high-throughput screening to identify modulators of various cellular processes and pathways that have been implicated in human diseases from cancer to autoimmune diseases. Once biologically active inhibitors are identified, they will serve both as probes of the biological processes of interest and as leads for the development of new drugs for treating human diseases. Among the biological processes of interest are cancer cell growth and apoptosis, angiogenesis, calcium-dependent signaling pathways, eukaryotic transcription and translation.
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Sean Taverna Laboratory
The Taverna Laboratory studies histone marks, such as lysine methylation and acetylation, and how they contribute to an epigenetic/histone code that dictates chromatin-templated functions like transcriptional activation and gene silencing. Our lab uses biochemistry and cell biology in a variety of model organisms to explore connections between gene regulation and proteins that write and read histone marks, many of which have clear links to human diseases like leukemia and other cancers. We also investigate links between small RNAs and histone marks involved in gene silencing.
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