| 4WG0: reference: Structure of a 13-fold superhelix (almost) determined from first principles., Schoch GA, Sammito M, Millan C, Uson I, Rudolph MG, IUCrJ. 2015 Jan 27;2(Pt 2):177-87. doi: 10.1107/S2052252515000238. eCollection, 2015 Mar 1. PMID: 25866655 |
This OCA 
Structure page
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(documentation).