Updated project metadata. Acute lymphoblastic leukemia (ALL) is the most common childhood cancer, and it has a 5-year survival rate of 85% for European children. But for subsets of patients who fail to respond to standard of care chemotherapeutics, treatment options are limited, and clinical prognosis is poor. To establish a novel platform and methodology to better characterize ALL subtypes and identify their pharmacologic vulnerabilities, we performed thermal proteome profiling of 20 childhood ALL cell lines.