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History
- December 9, 2016.
Copyright
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC 4.0 International license.
Author Information
- 1Divisions of Cell Biology, MRC Laboratory of Molecular Biology, Cambridge, CB2 0QH, UK.
- 2Divisions of Structural Studies, MRC Laboratory of Molecular Biology, Cambridge, CB2 0QH, UK.
- 3Current address: Roche Diagnostics, 68305 Mannheim, Germany
- ↵✉ For correspondence: sbullock{at}mrc-lmb.cam.ac.uk