Modifying the Vicinity of the Isopeptide Bond To Reveal Differential Behavior of Ubiquitin Chains with Interacting Proteins: Organic Chemistry Applied to Synthetic Proteins1. (4th September 2013) - Haj‐Yahya, Najat; Haj‐Yahya, Mahmood; Castañeda, Carlos A.; Spasser, Liat; Hemantha, Hosahalli P.; Jbara, Muhammad; Penner, Marlin; Ciechanover, Aaron; Fushman, David; Brik, Ashraf