4TZG:
reference: TGP, an extremely stable, non-aggregating fluorescent protein created by structure-guided surface engineering., Close DW, Don Paul C, Langan PS, Wilce MC, Traore DA, Halfmann R, Rocha RC, Waldo GS, Payne RJ, Rucker JB, Prescott M, Bradbury AR, Proteins. 2014 Oct 7. doi: 10.1002/prot.24699. PMID: 25287913

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