3DEO:
reference: Structural basis for specific substrate recognition by the chloroplast signal recognition particle protein cpSRP43., Stengel KF, Holdermann I, Cain P, Robinson C, Wild K, Sinning I, Science. 2008 Jul 11;321(5886):253-6. PMID: 18621669

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