science image (IMAGE) Salk Institute Caption In the central nuclei (blue) of immune cells called macrophages, removing the WASP gene (as in the right panel) leads to fewer clusters of RNA splicing proteins (red). Credit Salk Institute Usage Restrictions with credit and related coverage. License Original 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.