About the Authors

Hans-Michael Müller

Affiliation Division of Biology and Howard Hughes Medical Institute, California Institute of Technology, Pasadena, California, United States of America

Eimear E Kenny

Affiliation Division of Biology and Howard Hughes Medical Institute, California Institute of Technology, Pasadena, California, United States of America

Paul W Sternberg

To whom correspondence should be addressed. E-mail: pws@caltech.edu

Affiliation Division of Biology and Howard Hughes Medical Institute, California Institute of Technology, Pasadena, California, United States of America

Competing Interests

The authors have declared that no conflicts of interest exist.

Author Contributions

HMM, EEK, and PWS conceived and designed the experiments. HMM, EEK, and PWS performed the experiments. HMM, EEK, and PWS analyzed the data. HMM, EEK, PWS contributed reagents/materials/analysis tools. HMM, EEK, and PWS wrote the paper.