Overall Structure of the PSI-IsiA (IMAGE) Okayama University Caption Scientists uncover the crucial role of a key protein called iron-stress inducible A (isiA) protein in photosynthesis, by deep-diving into the structure of Photosystem I (PSI) of cyanobacteria Credit 2020 Okayama University Usage Restrictions The image may only be used with an appropriate caption or credit. 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.