Illustration LCMA1 (IMAGE) Umea University Caption The illustration shows the structure of the LMCA1 protein (purple) in the surrounding cell membrane with the calcium ion (yellow) bound in the membrane part of the protein. Credit Magnus Andersson, Umeå University Usage Restrictions Free to publish. 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.