John Stamm

Office:     BSBE 1-138
Phone: (612) 626-0113
Fax: (612) 624-0632
Mail: 312 Church St.
Minneapolis, MN 55455
Email: js@ddt.biochem.umn.edu



Research Interests:

My research focuses on the protein-protein interactions involved in phospholamban's (PLB) regulation of the cardiac sarcoplasmic reticulum Ca-ATPase. Specifically, I employ EPR spectroscopy to probe the protein-protein interactions involved in phospholamban's oligomeric structure in the membrane as well as interactions between PLB and the Ca-ATPase. Through site-directed mutagenesis I introduce spin-labeling sites in PLB enabling the study of different specific sites by EPR. I visualize and interpret the information gained through EPR using computational modeling techniques. Techniques: electron paramagnetic resonance spectroscopy, computational molecular modeling, molecular biology.


Publications:

Thomas, D.D., L.G. Reddy, C. B. Karim, M. Li, R. Cornea, J.M. Autry, L.R. Jones, and J.D. Stamm. 1998. Direct spectroscopic detection of molecular dynamics and interactions of the calcium pump and phospholamban. Ann. New York Acad. Sci., 853:186-195.

Karim, C.B., J.D. Stamm, J. Karim,L.R. Jones, and D.D. Thomas. 1998. Cysteine reactivity and oligomeric structures of phospholamban and its mutants. Biochemistry, 37:12074-12081.






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