About the Authors
Department of Biochemistry and Molecular Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: KMK HKS MJR. Performed the experiments: KMK HKS MJR. Analyzed the data: KMK MJR. Contributed reagents/materials/analysis tools: KMK MJR. Wrote the paper: KMK MJR.