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Researchers reveal HIV peptide's possible pathway into the cell
Date:1/17/2008

surrounding negative charges, but when no more of those charges are available due to their greedy peptide neighbors, some of the peptides reach into the cell membrane and grab negative charged phosphates from the other side. This opens a hole in the cell membrane and allows the flow of water and other material into the cell. Once all the peptides have been neutralized, the reaction stops and the hole closes, leaving behind a healthy, viable cell.

For the paper, the researchers reported a dozen different simulations run through a high-powered cluster of computers. Each simulation required a long process of testing and validating results. Garcia's computer cluster is now running simulations on the use of antimicrobial proteins which will open a pore in the cell and keep it open, killing the cell. Antimicrobial proteins have promising direct applications for killing harmful cells in the body.

Garcia hopes to harness the power of Rensselaer's newly opened Computational Center for Nanotechnology Innovations (CCNI), which houses the world's most powerful university-based supercomputing center. The CCNI will allow him to compile two years' worth of data on his normal cluster in just 10 to 20 days.


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Contact: Gabrielle DeMarco
demarg@rpi.edu
518-276-6542
Rensselaer Polytechnic Institute
Source:Eurekalert  

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