3GVM:
reference: WXG100 protein superfamily consists of three subfamilies and exhibits an alpha-helical C-terminal conserved residue pattern., Poulsen C, Panjikar S, Holton SJ, Wilmanns M, Song YH, PLoS One. 2014 Feb 26;9(2):e89313. doi: 10.1371/journal.pone.0089313. eCollection, 2014. PMID: 24586681

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