Figure (IMAGE) Osaka University Caption When the functional sugar chain is connected to GLUT4, it imports glucose. When the abnormal sugar is attached to GLUT4, it will be rapidly internalized into the cell after a quality check at plasma membrane. Credit Osaka University Usage Restrictions None 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.