(IMAGE) University of Bonn Caption into InsP8 (signaling molecule controlling phosphate acquisition). ITPK1 plays a key role in this process by generating or removing the precursor of InsP8 according to phosphate-dependent changes in ATP. Credit Image: Gabriel Schaaf / Uni Bonn Usage Restrictions This image may be used together with the 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.