4EB6:
reference: Structural plasticity of tubulin assembly probed by vinca-domain ligands., Ranaivoson FM, Gigant B, Berritt S, Joullie M, Knossow M, Acta Crystallogr D Biol Crystallogr. 2012 Aug;68(Pt 8):927-34. Epub 2012 Jul 7. PMID: 22868758

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