About the Authors
Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel
The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
The authors have declared that no competing interests exist.
Conceived and designed the experiments: ONB AH RU. Analyzed the data: ONB AH RU. Wrote the paper: ONB AH RU.