1. Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, NC 27710, USA.
2. Pediatric Hematology-Oncology, Duke University School of Medicine, Durham, NC 27710, USA.
3. Department of Biochemistry, School of Medicine, West Virginia University, Morgantown, WV 26506, USA.
4. Proteomics Core Facility, Institute for Genome Sciences & Policy, Duke University, Durham, NC 27710, USA.