| 3MHP: reference: Ferredoxin:NADPH oxidoreductase is recruited to thylakoids by binding to a polyproline type II helix in a pH-dependent manner., Alte F, Stengel A, Benz JP, Petersen E, Soll J, Groll M, Bolter B, Proc Natl Acad Sci U S A. 2010 Nov 9;107(45):19260-5. Epub 2010 Oct 25. PMID: 20974920 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).