RCas9 (IMAGE) University of California - San Diego Caption This is a cell carrying an RNA-targeted Cas9 system that reveals beta-actin mRNA distribution in the cytoplasm. Credit UC San Diego Health Usage Restrictions Use photo credit License Licensed content 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.