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History
- December 29, 2017.
Copyright
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
Author Information
- 1Institute of Structural and Molecular Biology, Birkbeck College, Malet Street, London, WC1E 7HX
- 2Institute of Structural and Molecular Biology, University College London, Gower Street, London, WC1E 6BT
- ↵*Address correspondence to c.vaughan{at}mail.cryst.bbk.ac.uk