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Researchers discover how the kissing disease virus hijacks human cells
Date:4/9/2014

This news release is available in French.

University of Montreal researchers have discovered how a component of the Epstein Barr (EBV) virus takes over our cells gene regulating machinery, allowing the virus to replicate itself. The EBV virus causes a variety of diseases such as Hodgkin's lymphoma and Burkitt's lymphoma, with the most prevalent disease being infectious mononucleosis commonly known as "kissing disease" because of its mode of transmission between humans. It turns out that the diseases begin with kiss of a molecular sort; a viral protein contacting the molecules that control our genes.

Viruses such as EBV use sophisticated strategies to subvert human cells during an infection. The viruses cannot survive outside of human cells and for this reason they have developed strategies to mimic key components of human cell function such as the RNA polymerase. "Unraveling the atomic level details of these interactions using structural biology allows us to understand how the virus tricks the human defense systems. Having this knowledge is the first step towards developing new therapeutic treatments for viral infections", explained Dr. James Omichinski, senior author of this work conducted in collaboration with his colleague Dr. Jacques Archambault at the Institut de recherches cliniques de Montral (IRCM).

Using cutting-edge nuclear magnetic resonance techniques at the University of Montreal facility for structural biology in the Department of Biochemistry and Molecular Medicine, the scientists studied how the EBNA2 protein of the EBV virus binds to one of the proteins of the TFIIH complex that helps regulate another protein called RNA polymerase II, a molecule that is responsible for the control of most of our genes. "We were able to unravel the molecular detail
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Contact: William Raillant-Clark
w.raillant-clark@umontreal.ca
514-566-3813
University of Montreal
Source:Eurekalert

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