Acetate as activator (IMAGE) German Center for Infection Research Caption The acetate molecule (center) puts white blood cells (neutrophil granulocytes) on alert via the receptor GPR43 (blue). Credit Universität Tübingen, Michael Pelzer Usage Restrictions Please use it only in connection to this press release. 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.