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AIDS/HIV

HIV key enzyme structure is determined

London -- U.S. and British scientists say they have determined the three-dimensional structure of a critical enzyme found in HIV and other retroviruses.

The study's lead author, Dr Peter Cherepanov of Imperial College London, said the precise structure of the enzyme called "integrase" was determined by growing a crystal using integrase from a retrovirus called the Prototype Foamy Virus that scientists believe is very similar to the human immunodeficiency virus.

Growing the crystal required 40,000 trials during four years of effort by researchers from Imperial College and Harvard University.

Road accidents, suicide and violence killing youth worldwide: Study

Los Angeles, September 11: A new study by Australian researchers has revealed that majority of young people across the world are dying in road accidents or some sort of violence.