1.3.1.8	purified recombinant red chlorophyll catabolite-bound RCCRDELTA49, and red chlorophyll catabolite-bound or substrate-free F218V RCCRDELTA49, sitting drop vapor diffusion method, 20°C, protein solution is mixed with an equal volume of reservoir solution and equilibrated against reservoir solution containing 30% w/v PEG 2000 monomethyl ether, 0.1 M ammonium acetate, 3% v/v dioxane, and 0.1 M 4-morpholineethanesulfonic acid–NaOH, pH 6.5, 1 day, X-ray diffraction structure determination and analysis at 2.0-2.6 A resolution	712769