1. Department of Structural Biology, Weizmann Institute of Science, Rehovot 7610001, Israel.
2. Department of Biology, Lund University, Lund 22362, Sweden.
3. Department of Chemical Research Support, Weizmann Institute of Science, Rehovot 7610001, Israel.
4. Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot 7610001, Israel.
5. Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 7610001, Israel.