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. 2009 Aug 7;37(18):6249–6258. doi: 10.1093/nar/gkp647

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© 2009 The Author(s)

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Comparison of the structures of R12 and D12. Schematic representation of the R12 structure (this study) (A) and the D12 structure (15) (B). A dyad axis correlating the two monomers is indicated for each structure.