After HIV enters a T-cell, three enzymes play essential roles in the life cycle of the virus. Reverse transcriptase copies the viral RNA genome and makes a DNA copy. Integrase inserts this viral DNA into the cell’s DNA. In the last steps of the viral life cycle, HIV protease cuts HIV proteins into their functional parts.
Current antiretroviral drugs target these three enzymes, hindering the virus reproduction. However, enzymes can mutate and become drug resistant, making it vital to use a combination of different drugs that target multiple enzymes.
This animation was created using many PDB entries for Reverse Transcriptase (3hvt, 3dlk, 3v6d, 3v4i, 3klg, 3v81), Integrase (3os1, 3os0, 3oya), Protease (3pj6, 1kj4, 1hxb, 2az9, 2azc), HIV Polyprotein (1l6n), Capsid Protein (2m8l), and Matrix Protein (1tam).
Tour the molecular anatomy of the Ebola virus with the RCSB PDB. Understanding of the shape and structure of the proteins that make up Ebola is a key component in the fight against the virus. Learn more at Molecule of the Month.
This seminar was presented by Stephen K. Burley, MD, DPhil, and Shuchismita Dutta, PhD on December 5th 2014 as part of the World AIDS Day Symposium at the Rutgers Center for Integrative Proteomics Research in Piscataway, NJ.
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