Human Gene's Protein Factory Has a Helpful Glitch (image) University of Maryland Share Print E-Mail Caption The human gene CCR5 is critical for HIV infection. A complex structure in its messenger RNA can cause the ribosome to slip at the area in green, making the ribosome read the remaining genetic code as nonsense RNA. This decreases the amount of CCR5 protein produced. A microRNA (miR-1224, in purple) increases stalling at that site. This causes more slippage, further reducing CCR5 production and helping to regulate the immune response. Credit Bruce A. Shapiro and Wojciech K. Kasprzak. Usage Restrictions None 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.