(IMAGE) Goethe University Frankfurt Caption Once cells’ quality control mechanism is activated, IRGQ (red) accumulates in special cell organelles, the lsysosomes (green). This is also where the degradation of the non-functional MHC-I molecules takes place. Credit Lina Herhaus Usage Restrictions To be used only when reporting on the indicated research paper. Give credit to Lina Herhaus 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.