I am interested in molecular evolution and the biochemistry of catalytic RNAs (ribozymes). Research in my lab utilizes powerful in vitro evolution techniques to discover RNA sequences with new or improved functions, for example, in regard to RNA-metal ion interactions. We are particularly keen to use these techniques to test fundamental evolutionary hypotheses, such as the antiquity of recombination.

My teaching at PSU includes the third term of general biochemistry, general chemistry, a non-majors course on the origins of life, and a graduate course on prebiotic chemistry. For updated class information, click on the teaching button above.

For more information on research in the Lehman Lab at PSU, click on the research button above. Perspective postdocs, graduate students, and undergraduates interested in performing research in evolutionary biochemistry can contact me by email or in person in 540 Science Building One. For information on Ph.D. (or B.S. and M.S.) degree programs in chemistry at Portland State, click on the Chemistry Department banner below.