Rodney A. Kelln

Professional qualifications:

BSc, PhD (British Columbia), Postdoctoral Studies (Texas A and M).

Research:

Nucleic Acid (DNA and RNA) Metabolism. The primary research focus is on the regulation of gene expression in two enteric bacteria Escherichia coli and Salmonella typhimurium with emphasis placed on aspects of de novo
pyrimidine nucleotide biosynthesis and interconversions of pyrimidine nucleotides.

Recent publications:

N. J. Krogan, M. L. Zaharik, J. Neuhard and R. A. Kelln. A combination of three mutations, dcd, pyrH and cdd, establishes thymidine (deoxyuridine) auxotrophy in thyA+ strains of Salmonella typhimurium , J. Bacteriol., 180, 5891 (1998).

K. E. Baker, K. P. DiTullio, J. Neuhard and R. A. Kelln. Utilization of orotate as a pyrimidine source by Salmonella typhimurium and Escherichia coli requires the dicarboxylate transport protein encoded by dctA , J. Bacteriol., 178, 7099 (1996).

J. Neuhard and R. A. Kelln. Biosynthesis and conversion of pyrimidines, p. 580-599. In F.C Neidhardt, R. Curtiss III, J. L. Ingraham, E. C. C. Linn, K. B. Low, B. Magasanik, W. S. Reznikoff, M. Riley, M. Schaechter, and H. E. Umbarger (ed.), Escherichia coli and Salmonella : Cellular and Molecular Biology, 2nd ed. American Society for Microbiology, Washington, D.C (1996).

J. Fricke, J. Neuhard, R.A. Kelln and S. Pedsersen. The cmk gene encoding cytidine monophosphate kinase is located in the rpsA operon and is required for normal replication rate in Escherichia coli, J. Bacteriol., 177, 517 (1995).

Other Achievements:

Dean of Graduate Studies and Research. Winner of Alumni Award for Research and Kalium Fellowship in Science and Engineering.