Modeling How HIV Latches on to Immune Cell Receptors (video) NIH/National Institute of General Medical Sciences Share Print E-Mail Loading video... Caption This model shows how HIV, in gray, might latch on to immune cell receptor molecules, allowing the virus to enter and infect the cell. The viral protein, gp120, shown in light blue, binds to receptors CD4 and CXCR4, shown in tan and dark blue. Models like this one allow scientists to test their ideas about how HIV gains access to cells -- and help pinpoint important targets for developing drugs to impede HIV. Credit Animation courtesy of Gye Won Han of the Scripps Research Institute. Video produced by the National Institute of General Medical Sciences, part of the National Institutes of Health. Usage Restrictions Please include the credit information. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.