CntA enzyme (IMAGE) University of Warwick Caption Caption: Top: protein crystals of CntA enzyme, middle: Cartoon depiction of CntA enzyme in its functional trimeric state, bottom: detailed view of carnitine bound in the active site of CntA prior to cleavage. Credit Credit: University of Warwick Usage Restrictions Only to be used in conjunction with this story 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.