Fig 1. Overall cryo-EM structure of IVD combined with FAD. (IMAGE) Research Caption Fig 1. Overall cryo-EM structure of IVD combined with FAD. Credit Copyright © 2025 Kaide Ju et al. Usage Restrictions Credit must be given to the creator. License CC BY 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.