Cuello01.jpg (IMAGE) Texas Tech University Health Sciences Center Caption TTUHSC’s Luis Cuello, Ph.D., (right) helped to lead a study to determine if a known mutation found within Shaker-IR channel epitomizes and functionally accelerates the C-type inactivation state. Credit TTUHSC Usage Restrictions None 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.