About the Authors
- Yang Lu, Chang Su, Allen Wang, Haoping Liu
- Department of Biological Chemistry, University of California, Irvine, California, United States of America
The authors have declared that no competing interests exist.
The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: YL AW HL. Performed the experiments: YL CS AW. Analyzed the data: YL CS HL. Wrote the paper: YL HL.