A Mutated Arl13b Gene (IMAGE) University of North Carolina Health Care Caption A mutated Arl13b gene caused neurons (red, green) to form clusters and other malformations in this mouse brain. Credit Anton Lab, UNC School of Medicine Usage Restrictions None 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.