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The Shippen Research Group at Texas A&M University, College Station

We are taking biochemical, molecular genetic and cytological approaches to study the structure, function and maintenance of telomeres. Telomeres are higher order nucleoprotein complexes that cap the ends of eukaryotic chromosomes and play essential roles in conferring genome stability and cell proliferation capacity.

We have developed the genetically tractable flowering plant Arabidopsis thaliana as a model system for studying telomeres in higher eukaryotes. With its sequenced genome, abundant genetic and transgenic tools, and extraordinarily high tolerance to genome instability, Arabidopsis has proven to be an excellent model for investigating fundamental processes in telomere biology.

Current studies focus on defining the function and molecular evolution of telomere capping proteins and components of the telomerase ribonucleoprotein complex.