Navigation Links
Drug designer
Date:7/8/2011

Protease inhibitor drugs are one of the major weapons in the fight against HIV, the virus that causes AIDS, but their effectiveness is limited as the virus mutates and develops resistance to the drugs over time. Now a new tool has been developed to help predict the location of the mutations that lead to drug resistance.

First discovered in 1995, protease inhibitor drugs have dramatically reduced the number of AIDS deaths. Taken in combination with two other anti-HIV drugs, protease inhibitors work by halting the action of the protease enzyme, a protein produced by HIV that is necessary for replication of the virus. However, almost half of HIV patients who initially respond to treatment with protease inhibitors develop drug-resistance strains and stop responding to treatment within eight to 10 months.

Currently there are nine FDA approved protease inhibitors, and 21 most common drug-resistant mutations.

The main reason for the short-term effectiveness of the drug has to do with the evolution of the drug within the body, said the study's author, Yi Mao, a postdoctoral fellow at the National Institute for Mathematical and Biological Synthesis.

In the new study, published today in the journal BMC Structural Biology, Mao used a mathematical modeling technique called elastic network modeling to examine the physical properties and interactions of the proteins. The model reveals where mutations are occurring during the evolution of the HIV-virus proteins and how these mutations help the virus survive.

"With this kind of knowledge, better strategies for designing anti-HIV drugs could be developed," Mao said.

HIV kills the body's immune system cells, called CD4 cells. Once the number of CD4 cells dips below 200, an HIV patient enters the last stage of his or her disease: Acquired Immune Deficiency Syndrome, or AIDS. The first cases of AIDS were reported thirty years ago. Since then, more than 60 million people have been infected with HIV, and mor
'/>"/>

Contact: Catherine Crawley
ccrawley@nimbios.org
865-974-9350
National Institute for Mathematical and Biological Synthesis (NIMBioS)
Source:Eurekalert

Page: 1 2

Related biology news :

1. Consumers desire more genetic testing, but not designer babies
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... Strict laws against distracted driving and the ... American and European automotive sector towards gesture recognition technologies. ... that are intuitive and able to retrieve information with ... New analysis from Frost & Sullivan,s Strategic ... Europe and North America ...
(Date:11/21/2014)... Calif. , Nov. 20, 2014   Atmel® ... leader in microcontroller (MCU) and touch technology solutions, today ... temperature sensors with the widest V cc ... higher temperature accuracy and faster I 2 C bus ... and serial EEPROM memory making them ideal for consumer, ...
(Date:11/18/2014)... 17, 2014   News Highlights: ... to develop The Partners Data Lake, an agile ... Data Lake will allow researcher and clinicians to ... and the lives of patients , The ... activities across the Partners system, breaking down physical ...
Breaking Biology News(10 mins):Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 2Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 3Atmel Launches Industry's First Wide-V(cc) Low-Power Temperature Sensor Family 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5
... Northwestern University have developed a simpler way to ... soon allow for more rapid security screening, border ... astronomical applications. The work, headed by Manijeh ... and Computer Science in the McCormick School of ...
... Rome, Italy The General Assembly of the International Council ... guide the conduct of science. It explicitly recognized the key ... the free practice of science. While the focus of the ... ICSU,s statutes and a basic condition of worldwide membership of ...
... October issue of The American Naturalist shows that ... help of the same phenomenon that fogs up eyeglasses in ... in Australia, tree frogs often plop themselves down outside on ... they return to their dens, condensation forms on their cold ...
Cached Biology News:Researchers realize high-power, narrowband terahertz source at room temperature 2Responsibilities of scientists underlined by scientific community 2Tree frogs chill out to collect precious water 2
(Date:12/19/2014)... , Dec. 18, 2014 Relmada Therapeutics, ... for the treatment of chronic pain, announced the results ... "This was a transformational year in Relmada,s ... future for our company," said Sergio Traversa , ... we have executed on key financial, human resource and ...
(Date:12/17/2014)... USA (PRWEB) December 16, 2014 ... manager at Philipps- Universität Marburg’s Department of Physics, ... photonics, in the newly released SPIE Women ... never be too shy to ask questions.” , ... technology, engineering, and mathematics) occupations ranging from university ...
(Date:12/17/2014)... 17, 2014 Once more, EMAAR ... larger packaged waste water treatment plant to phase one ... City (KAEC). Two years ago Bioshaft successfully supplied and ... serving two residential towers with an occupancy of 900 ... quarter million gallons per day and was signed on ...
(Date:12/17/2014)... 17, 2014 Gene synthesis and ... has entered into a technology access and services ... apply DNA2.0’s proprietary protein engineering technology, known as ... “We are extremely excited that the global leader ... This proprietary bioengineering technology has now been validated ...
Breaking Biology Technology:Relmada Therapeutics Announces Results of Annual Shareholders Meeting 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 3ADM and DNA2.0 Enter Into Protein Engineering Technology Access and Service Agreement 2
... THRM ), a leader in non-invasive tissue ... will present at the 2008 Thomas Weisel,Partners Healthcare ... The,Company,s presentation is scheduled for Wednesday, September 3, ... President and Chief,Executive Officer of Thermage, will review ...
... 27 The Board of,Directors, meeting today under the chairmanship of Albert Saporta, approved,STALLERGENES, half year consolidated financial statements:, (EUR millions) ... 08/07 ... of % ... sales change, Sales ...
... Aug. 27 MichBio, the association for,Michigan,s biosciences ... Showcase to its program on day one of ... the Rock Financial ShowPlace Novi, MI. The,event will ... introduce,their bioscience technologies and emerging companies to an ...
Cached Biology Technology:Stallergenes: First Half Year 2008: A 19% Increase in Operating Profit and Net Profit 2Stallergenes: First Half Year 2008: A 19% Increase in Operating Profit and Net Profit 3Start-Up and Emerging Biotech Companies Will Tell Their Stories at Biosciences Showcase Planned for MichBio Expo 2
Peptide-affinity Purified Polyclonal Antibody to Purinergic Receptor P2Y12...
Peptide-affinity Purified Polyclonal Antibody to SMAD7 Peptide with sequence SSCPCWLEVIFNSR, from C Terminus of the protein sequence according to NP_005895....
Mouse monoclonal [b/e4 (9.20)] to Cytochrome P450 2B1 + 2B2 ( Abpromise for all tested applications)....
Goat polyclonal to MLH3 ( Abpromise for all tested applications). entrezGeneID: 27030 SwissProtID: Q9UHC1...
Biology Products: