4DCQ:
reference: Disease-Associated Polyglutamine Stretches in Monomeric Huntingtin Adopt a Compact Structure., Peters-Libeu C, Miller J, Rutenber E, Newhouse Y, Krishnan P, Cheung K, Hatters D, Brooks E, Widjaja K, Tran T, Mitra S, Arrasate M, Mosquera LA, Taylor D, Weisgraber KH, Finkbeiner S, J Mol Biol. 2012 Jan 28. PMID: 22306738

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).