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ERIC Number: EJ939009
Record Type: Journal
Publication Date: 2011-Jul
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0021-9584
Preparative Protein Production from Inclusion Bodies and Crystallization: A Seven-Week Biochemistry Sequence
Peterson, Megan J.; Snyder, W. Kalani; Westerman, Shelley; McFarland, Benjamin J.
Journal of Chemical Education, v88 n7 p986-989 Jul 2011
We describe how to produce and purify proteins from "Escherichia coli" inclusion bodies by adapting versatile, preparative-scale techniques to the undergraduate laboratory schedule. This 7-week sequence of experiments fits into an annual cycle of research activity in biochemistry courses. Recombinant proteins are expressed as inclusion bodies, which are collected, washed, then solubilized in urea. Stepwise dialysis to dilute urea over the course of a week produces refolded protein. Column chromatography is used to purify protein into fractions, which are then analyzed with gel electrophoresis and concentration assays. Students culminate the project by designing crystallization trials in sitting-drop trays. Student evaluation of the experience has been positive, listing 5-12 new techniques learned, which are transferable to graduate research in academia and industry. (Contains 2 tables and 4 figures.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A