4O01:
reference: Signal amplification and transduction in phytochrome photosensors., Takala H, Bjorling A, Berntsson O, Lehtivuori H, Niebling S, Hoernke M, Kosheleva I, Henning R, Menzel A, Ihalainen JA, Westenhoff S, Nature. 2014 May 8;509(7499):245-8. doi: 10.1038/nature13310. Epub 2014 Apr 30. PMID: 24776794

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