2.7.7.60 | purified IspD and IspD complexed with CTP and Mg2+, hanging drop vapour diffusion method, for the apoenzyme, 8 mg/ml protein in 25 mM Tris-HCl, pH 8.0, and 0.1 M NaCl, is mixed with 0.1 M Tris (pH 8.5), 20% v/v PEG monomethyl ether 2000, for the complexed enzyme 8 mg/ml protein in 25 mM Tris-HCl, pH 8.0, and 0.1 M NaCl, is mixed with 0.2 M MgCl2, 0.1 M HEPES, pH 7.5, 25% v/v PEG 3350, 18°C, X-ray diffraction structure determination and analysis, molecular replacement using the monomer of IspD enzyme from Arabidopsis thaliana (AtIspD) (PDB ID 2yc3) as template |