Tuesday 29 July, 2014

Online gamers crack AIDS virus puzzle that scientists failed to do

Published On: Mon, Sep 19th, 2011 | Synthetic Biology | By BioNews

Gamers have deciphered the structure of an enzyme of an AIDS-like virus that had eluded scientists for more than a decade.

The gamers achieved their discovery by playing Foldit, an online game that allows players to collaborate and compete in predicting the structure of protein molecules.

After scientists repeatedly failed to piece together the retrovirus enzyme structure, they called in the Foldit players.

The scientists challenged the gamers to produce an accurate model of the enzyme. They did it in only three weeks.

This class of enzymes has a critical role in how the AIDS virus matures and proliferates.

Intensive research is under way to try to find anti-AIDS drugs that can block these enzymes, but efforts were hampered by not knowing exactly what the retroviral protease molecule looks like.

“We wanted to see if human intuition could succeed where automated methods had failed,” said Dr. Firas Khatib of the University of Washington Department of Biochemistry. Khatib is a researcher in the protein structure lab of Dr. David Baker, professor of biochemistry.

Remarkably, the gamers generated models good enough for the researchers to refine and, within a few days, determine the enzyme”s structure. Equally amazing, surfaces on the molecule stood out as likely targets for drugs to de-active the enzyme.

“These features provide exciting opportunities for the design of retroviral drugs, including AIDS drugs,” wrote the authors of the report.

The study was recently published in Nature Structural and Molecular Biology.

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