PT - JOURNAL ARTICLE AU - Rehwinkel, Jan AU - Reis e Sousa, Caetano TI - RIGorous Detection: Exposing Virus Through RNA Sensing AID - 10.1126/science.1185068 DP - 2010 Jan 15 TA - Science PG - 284--286 VI - 327 IP - 5963 4099 - http://science.sciencemag.org/content/327/5963/284.short 4100 - http://science.sciencemag.org/content/327/5963/284.full SO - Science2010 Jan 15; 327 AB - Virus infection in mammals elicits a variety of defense responses that are initiated by signals from virus-sensing receptors expressed by the host. These receptors include the ubiquitously expressed RIG-I–like receptor (RLR) family of RNA helicases. RLRs are cytoplasmic proteins that act in cell-intrinsic antiviral defense by recognizing RNAs indicative of virus presence. Here, we highlight recent progress in understanding how RLRs discriminate between the RNA content of healthy versus virus-infected cells, functioning as accurate sensors of virus invasion.