Huntington's Disease (IMAGE) University of California - San Diego Caption In Huntington’s disease, toxic accumulations of the huntingtin protein produced by the mutated HTT gene results in progressive destruction of neurons in a part of the brain responsible for regulating movement. Credit Huntington’s Disease News. Usage Restrictions Use photo credit 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.