About the Authors

Dong-Xiu Zhang

Affiliation Institute for Bioscience and Biotechnology Research and Department of Cell Biology and Molecular Genetics, University of Maryland, Rockville, Maryland, United States of America

Martin J. Spiering

Affiliation Institute for Bioscience and Biotechnology Research and Department of Cell Biology and Molecular Genetics, University of Maryland, Rockville, Maryland, United States of America

Donald L. Nuss

dnuss@umd.edu

Affiliation Institute for Bioscience and Biotechnology Research and Department of Cell Biology and Molecular Genetics, University of Maryland, Rockville, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: D-XZ MJS DLN. Performed the experiments: D-XZ MJS DLN. Analyzed the data: D-XZ MJS DLN. Contributed reagents/materials/analysis tools: D-XZ MJS DLN. Contributed to the writing of the manuscript: D-XZ MJS DLN.