Fig. 2: The cryo-EM structure of DrBphP-DrRR in Pr.
From: Structural mechanism of signal transduction in a phytochrome histidine kinase
a The reconstructed electron density of Pr full-length DrBphP-DrRR is shown with the structural model which was refined up to residue Leu591. The electron density of the CA domains is below the presented contour level. See Supplementary Fig. 5a for CA and REC domain assignment. b The PHY tongue has adopted a β-sheet form characteristic of Pr-state phytochromes. c The density of the BV chromophore supports a 15Z-conformation (compare Supplementary Fig. 5c). The densities of the tongue and BV are from the cryo-EM map with the local refinement of the PSM and neck region (Pr PSM, see Supplementary Fig. 2).
