Rong Li

The goal of our research is to understand how eukaryotic cells polarize, divide, move, and vary their genomes to adapt to the changing environment. We strive for integrated analyses on the systems level that combines whole-cell quantitative observation and...

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Jun Liu

Our primary research interest lies at the interface between chemistry, biology and medicine. We seek to discover new chemical ligands to modulate signaling pathways and cellular processes of interest by conducting high-throughput screening of chemical libraries we generate or...

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Peter Espenshade

Regulation of Sterol Homeostasis Elevated serum cholesterol is a primary risk factor for heart disease. A negative feedback mechanism prevents excessive cellular cholesterol accumulation by regulating SREBP, a membrane-bound transcription factor that activates genes required for cholesterol biosynthesis and...

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Andrew Ewald

Background and Summary:Epithelial cells in a tissue live a crowded life connected to, and interacting with, other cell types, the extracellular matrix, and diverse signaling molecules. A fundamental question in biology is: how do the constituent cells of an...

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Andrew Feinberg

Understanding how the information in the genome is utilized is one of the central questions in modern biology. It has become clear that a critical level of gene regulation occurs through the chemical modification of both the DNA itself...

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Carol Greider

Telomeres protect chromosome ends from being recognized as DNA damage and chromosomal rearrangements. Conventional replication leads to telomere shortening, but telomere length is maintained by the enzyme telomerase that synthesizes telomere sequences de novo onto chromosome ends. Telomerase is...

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J. Marie Hardwick

Our laboratory studies the basic molecular mechanisms of programmed cell death, an evolutionarily conserved process to eliminate cells. Because these pathways normally contribute to the millions of cell deaths that occur per day per individual, defects in cell death...

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Andrew Holland

Molecular mechanisms underlying accurate chromosome segregation Since Flemming introduced the term “mitosis” over 100 years ago, a challenge has been to understand how cells divide and faithfully transmit chromosomes at each cell division. Errors in the distribution of chromosomes...

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Miho Iijima

Mechanisms of gradient sensing and chemotaxis are conserved in mammalian leukocytes and Dictyostelium amoebae. Both cells use G protein linked signaling pathways. PH domains specific for PtdIns(3,4)P2 and PtdIns(3,4,5)P3 bind to the membrane at the leading edge of the...

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Jie Xiao

My laboratory focuses on developing novel single-molecule imaging tools in live cells to probe various dynamic aspects of cellular processes. We develop single-molecule gene expression reporting systems and chromosomal DNA conformation markers to probe the dynamics of gene regulation...

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