4L9G:
reference: Multi-PAS domain-mediated protein oligomerization of PpsR from Rhodobacter sphaeroides., Heintz U, Meinhart A, Winkler A, Acta Crystallogr D Biol Crystallogr. 2014 Mar;70(Pt 3):863-76. doi:, 10.1107/S1399004713033634. Epub 2014 Feb 27. PMID: 24598755

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