About the Authors

Nora Engel
Fels Institute for Cancer Research/Biochemistry, Temple University School of Medicine, Philadelphia, Pennsylvania, United States of America

Corresponding Author


Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LK NE. Performed the experiments: LK NS NE. Analyzed the data: LK NE. Wrote the paper: LK NE.