Over the past five decades, scientists have described more than 80,000 protein structures, most of which are now publicly available and provide important information to medical researchers searching for targets for drug therapy. However, a similar effort to catalogue RNA structures has mapped only a few hundred RNA molecules. As a result, the potential of RNA molecules has just barely been developed as targets for new therapeutics.
"To effectively target these molecules, researchers often need a three-dimensional picture of what they look like," says Nikolay Dokholyan, PhD, professor in the department of biochemistry and biophysics, and the project's co-leader.
"With Dr. Kevin Weeks' lab, we have developed a way to create a three-dimensional map of complex RNAs that are not amenable to study through other methods. It builds on information from a routine laboratory experiment, used in the past to evaluate RNA models from a qualitative standpoint. Our team has created a sophisticated quantitative model that uses this simple information to predict structures for large, complex RNA molecules, which have previously been beyond the reach of modeling techniques," he adds.
Dokholyan, who is a member of UNC Lineberger Comprehensive Cancer Center and director of the UNC Center for Computational and Systems Biology, hopes that the method will help researchers who are trying to target RNAs molecules to change cellular metabolism in a way that ultimately reduces the effects of cellular diseases like cancer. He notes, "Rational, cost-effective screening for small molecules requires a good understanding of the targeted structure. We hope that this method will open doors to new findings applicable to a wide range of human diseases."
Other members of the research team include Feng Ding, PhD, Research Assistant Professor of biochemistry and biophysics, Christopher Lavendar, a graduate student of in the department chemistry, and study co-leader Kevin Weeks, PhD, Kenan Distinguished Professor of Chemistry and UNC Lineberger member.
The research was funded by the National Institutes of Health and the University of North Carolina Research Council.
University of North Carolina School of Medicine
Source: EurekAlert!, the online, global news service operated by AAAS, the science society
Please use one of the following formats to cite this article in your essay, paper or report:
University of North Carolina School of Medicine. "3-D RNA Modeling Opens Scientific Doors." Medical News Today. MediLexicon, Intl., 17 Apr. 2012. Web.
30 Jul. 2016. <http://www.medicalnewstoday.com/releases/244135.php>
University of North Carolina School of Medicine. (2012, April 17). "3-D RNA Modeling Opens Scientific Doors." Medical News Today. Retrieved from
Please note: If no author information is provided, the source is cited instead.
Contact our news editors
For any corrections of factual information, or to contact our editorial team, please see our contact page.
Copyright Medical News Today: Excluding email/sharing services explicitly offered on this website, material published on Medical News Today may not be reproduced, or distributed without the prior written permission of Medilexicon International Ltd. Please contact us for further details.