. Author manuscript; available in PMC: 2016 Mar 3.
Published in final edited form as: Nature. 2015 Aug 26;525(7567):134–139. doi: 10.1038/nature14970
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| core Sγ1/Sε | |||
|---|---|---|---|
| a | b | c | (−) |
| d | e | f | (+) |