Extended Data Fig. 12: OCPR features. a and b, electrostatics of the protein environment of the carotenoid tunnel mapped on the OCPR bound to the PBS.
From: Structures of a phycobilisome in light-harvesting and photoprotected states

a, Carotenoid tunnel with the β1 and β2 indicated and carotenoid shown as sticks. b, Electrostatic surfaces of the proteins around the carotenoid tunnel and the nearby bilins; carotenoid and bilins shown as sticks. c, CTD-CTD List of residues that interact within 4 Å. d, Close-up view of the P276-W277-F278 loop covering the opening to the carotenoid tunnel in the CTD of OCPO. e, Sequence conservation logo for the CTD (beginning at residue 199) of the OCP. Residues involved in the dimerization are highlighted with a yellow dot.