About the Authors
Gene Expression Laboratory, Salk Institute, La Jolla, California, United States of America
Howard Hughes Medical Institute, La Jolla, California, United States of America
Marine Biotechnology Laboratory, School of Earth and Environmental Sciences, Seoul National University, Seoul, Korea
The authors have declared that no conflicts of interest exist.
YXW and RME conceived and designed the experiments. YXW, CLZ, RTY, MCN, and CRBO performed the experiments. YXW, CLZ, and RME analyzed the data. HKC, JH, and HK contributed reagents/materials/analysis tools. YXW and RME wrote the paper.