- Jul 17, 2003
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A former coworker of mine contracted HIV a number of years ago, and even though he has so far enjoyed a Magic Johnson like response to it, news like this is great as I know most people who have it aren't that lucky (duh) Anyway: http://news.yahoo.com/s/nm/20100201/hl_nm/us_aids_hiv_enzyme
"Scientists say they have solved a crucial puzzle about the AIDS virus after 20 years of research and that their findings could lead to better treatments for HIV."
"When the human immunodeficiency virus (HIV) infects someone, it uses the integrase enzyme to paste a copy of its genetic information into their DNA, Cherepanov explained in the study published in the Nature journal on Sunday.
Some new drugs for HIV -- like Isentress from Merck & Co and elvitegravir, an experimental drug from Gilead Sciences -- work by blocking integrase, but scientists are not clear exactly how they work or how to improve them.
The only way to find out was to obtain high-quality crystals -- a project that had defeated scientists for many years.
"When we started out, we knew that the project was very difficult, and that many tricks had already been tried and given up by others long ago," said Cherepanov.
"Therefore, we went back to square one and started by looking for a better model of HIV integrase which could be more amenable for crystallization."
The researchers grew a crystal using a version of integrase borrowed from another retrovirus very similar to its HIV counterpart.
It took more than 40,000 trials for them to come up with one a crystal of sufficiently high quality to allow them to see the three-dimensional structure, they said.
They tested the Merck and Gilead drugs on the crystals, and were able to see for the first time how the medicines bind to, and block, integrase."
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Very cool, the sooner we get this nut cracked, the sooner we can devote more resources to the next likely health epidemic, diabetes. Occurrences of religious bigots proclaiming AIDS to be god's divine retribution on queers should dry up too hopefully.
"Scientists say they have solved a crucial puzzle about the AIDS virus after 20 years of research and that their findings could lead to better treatments for HIV."
"When the human immunodeficiency virus (HIV) infects someone, it uses the integrase enzyme to paste a copy of its genetic information into their DNA, Cherepanov explained in the study published in the Nature journal on Sunday.
Some new drugs for HIV -- like Isentress from Merck & Co and elvitegravir, an experimental drug from Gilead Sciences -- work by blocking integrase, but scientists are not clear exactly how they work or how to improve them.
The only way to find out was to obtain high-quality crystals -- a project that had defeated scientists for many years.
"When we started out, we knew that the project was very difficult, and that many tricks had already been tried and given up by others long ago," said Cherepanov.
"Therefore, we went back to square one and started by looking for a better model of HIV integrase which could be more amenable for crystallization."
The researchers grew a crystal using a version of integrase borrowed from another retrovirus very similar to its HIV counterpart.
It took more than 40,000 trials for them to come up with one a crystal of sufficiently high quality to allow them to see the three-dimensional structure, they said.
They tested the Merck and Gilead drugs on the crystals, and were able to see for the first time how the medicines bind to, and block, integrase."
----------------------
Very cool, the sooner we get this nut cracked, the sooner we can devote more resources to the next likely health epidemic, diabetes. Occurrences of religious bigots proclaiming AIDS to be god's divine retribution on queers should dry up too hopefully.