PROTAC EML4-ALK Degrader-2 (Pro-BA) is a selective and orally active linker-free EML4-ALK PROTAC degrader with the DC50 of 74 nM in H1322 cells (T1/2 = 8 h). PROTAC EML4-ALK Degrader-2 relies on GID4 and proteasome pathways to promote ubiquitination of target proteins, leading to cell apoptosis. PROTAC EML4-ALK Degrader-2 can be used for research on cancer. (Pink: EML4-ALK Ligand (HY-40114), Blue: GID4 Ligand (HY-150908)) [1]