1. Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105, United States
2. Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105, United States
3. Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105, United States
4. Department of Structural Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105, United States
5. Hematological Malignancies Program, St. Jude Comprehensive Cancer Center, St. Jude Children’s Research Hospital, Memphis, Tennessee 38105, United States