4LMS:
reference: Single-residue insertion switches the quaternary structure and exciton states of cryptophyte light-harvesting proteins., Harrop SJ, Wilk KE, Dinshaw R, Collini E, Mirkovic T, Teng CY, Oblinsky DG, Green BR, Hoef-Emden K, Hiller RG, Scholes GD, Curmi PM, Proc Natl Acad Sci U S A. 2014 Jul 1;111(26):E2666-75. doi:, 10.1073/pnas.1402538111. Epub 2014 Jun 16. PMID: 24979784

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