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RNA: Structure, Metabolism and Catalysis /
RNA Processing / Trafficking

Legault, Pascale E-mail: pascale@bmb.uga.edu
The research in our laboratory focuses on NMR spectroscopy and biochemical studies of RNAs and RNA-protein complexes in order to gain a structural understanding of their biological function. Several ribozymes are currently being investigated to help understand the structural basis of RNA catalysis. The activity of these ribozymes depends on specific divalent metals for proper folding and chemical reactivity. We are determining the structure of these ribozymes and studying their interaction with divalent metal ions. Several RNA-protein interactions that play key roles in HIV infection are also being investigated using binding and NMR methods. In addition, we are studying the effect of small organic compounds on these RNA-protein interactions to provide insights in the design of improved anti-HIV drugs.
Keywords: RNA, RNA-protein interactions, HIV, ribozyme, metal binding, structural biology, NMR spectroscopy

Terns, Michael P. E-mail: mterns@bmb.uga.edu
Ribonucleoprotein particles consisting of small nucleolar RNAs and associated proteins (snoRNPs) function in the cleavage and modification of ribosomal RNA in eukaryotes. The many individual snoRNAs guide snoRNPs to specific sites of rRNA processing and modification by basepairing to rRNA. We are currently working to determine the structure / function of the snoRNPs. Modification guide RNAs have also recently been identified in archaeal genomes by computational screens. This exciting discovery indicates that modification of rRNA in Archaea is also guided by RNAs (rather than catalyzed by individual site-specific protein methyltransferases as in Bacteria). Using the hyperthermophilic archaeon Pyrococcus furiosus, we have begun to investigate the conserved features as well as the very interesting differences between the eukaryotic and archaeal systems. This work involves collaborations with Sean Eddy (Univ of Washington) and Mike Adams (Univ of Georgia).
Keywords: nucleic acids-RNA (biogenesis, transport, and function), biomedical research (telomerase, gene therapy, ribozymes), hyperthermophilic Archaea (Pyrococcus furiosus)




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