Disease Loci (IMAGE) University of North Carolina Health Care Caption Diseases cluster around the 6p21 MHC locus and the 9p21-INK4/ARF locus. Credit William Jeck, UNC-Chapel Hill. Used with permission of Aging Cell. 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.