Proteins — Where DNA Takes on Form and Function


May 15, 2009
Kristi DeCourcy, PhD
Virginia Polytechnic Institute and State University

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Electrophoresis of proteins is similar to electrophoresis of DNA, but there are many differences between protein and DNA molecules including composition, charge, size, and variability that must be addressed to separate proteins by size using electrophoresis. This webinar will cover the similarities and differences between DNA molecules and protein molecules and the changes in procedure that are necessary to deal with these differences. After size separation, proteins must be visualized with a dye and the result analyzed, but what information other than size can be gained from a protein gel? Further experiments such as western blotting will be discussed.

About the speaker:
Dr. Kristi DeCourcy received her BA in biology from SUNY Purchase and her MS in biology and PhD in biochemistry from Virginia Tech. Her doctoral research focused on protein chemistry and cell biology. For the last 14 years, she has been the laboratory manager of the Fralin Biotechnology Center at Virginia Tech. As manager, Dr. DeCourcy has run the undergraduate molecular biology laboratories, managed a microscopy core facility, and developed and directed a high school outreach program that provides equipment and materials to more than 10,000 Virginia students annually.