Elizabeth Trimmer

 

Campus Phone: 
641-269-4398
Fax: 
641-269-4984
Unit (Dept., Office, Center, etc.): 
Position: 
Associate Professor of Chemistry
On-Campus Address: 
Science-2007
Education / Degrees: 
NIH Postdoctoral fellow 1997-2000, University of Michigan
Ph.D., Biological Chemistry, 1997, Massachusetts Institute of Technology
B.A., 1988, Carleton College
Publications: 
TitleURLSynopsis
"A Functional Role for the Conformationally Mobile Amino Acid Phenylalanine 223 in the Reaction of Methylenetetrahydrofolate Reductase from E. coli"Lee, M.N., Takawira, D., Nikolova, A.P., Ballou, D.P., Furtado, V.C, Phung, N.L., Still, B.R., Thorstad, M.K., Tanner, J.J., and Trimmer, E.E. 2009. Biochemistry, 48, 7673-7685.
"Aspartate 120 of Escherichia coli Methylenetetrahydrofolate Reductase: Evidence for Major Roles in Folate Binding and in Catalysis, Minor Role in Flavin Reactivity"Trimmer, E.E., Ballou, D.P., Galloway, L.J., Scannell, S.A., Brinker, D.R, and Casas, K.R. 2005. Biochemistry, 44, 6809-6822.
"Studies of the Mechanisms of Bacterial and Mammalian Methylenetetrahydrofolate Reductases"Ballou, D.P., Yamada, K., Pejchal, R., Ludwig, M.L., Matthews, R.G., Trimmer, E.E. 2002. "Flavins and Flavoproteins 2002," (R.N. Perham ed.), pp. 13-22.
"Methylenetetra-hydrofolate Reductase from Escherichia coli: Elucidation of the Kinetic Mechanism by Steady-State and Rapid-Reaction Studies"Trimmer, E.E., Ballou, D.P., Matthews, R.G. 2001. Biochemistry, 40, 6205-6215.
"Folate Activation and Catalysis Methylenetetrahydrofolate Reductase from Escherichia coli: Roles for Aspartate 120 and Glutamate 28"Trimmer, E.E., Ballou, D.P., Ludwig, M.L., Matthews, R.G. 2001. Biochemistry, 40, 6216-6226.
"Purification and Properties of NADH-dependent 5,10-Methylenetetrahydrofolate Reductase (MetF) from Escherichia coli"Sheppard, C.A., Trimmer, E.E., Matthews, R.G. 1998. J. Bacteriology, 181, 718-725.
Courses Taught: 
BCM 262 Introduction to Biological Chemistry
CHM 129 General Chemistry
CHM 221 Organic Chemistry I
CHM 222 Organic Chemistry II
CHM 330 Enzyme Mechanisms
Tutorial: "Papermaking: A Chemistry Approach"
SCI/ART 295 Special Topic: Chemistry of Artists' Materials
Primary Academic Interest: 
Structure and Mechanism of Enzymes

Research

Professor Trimmer is interested in the structure and mechanism of enzymes. Her research has focused on enzymes that perform oxidation/reduction reactions using the coenzyme flavin. She is investigating how the protein environment influences the chemical reactivity of the flavin. Trimmer Summer 2012 Research Description