Preliminary crystallographic data for Pneumocystis carinii dihydrofolate reductase.
Dihydrofolate reductase from Pneumocystis carinii has been crystallized in a form suitable for high resolution X-ray diffraction studies. Recombinant enzyme that had been refolded following solubilization in guanidinium hydrochloride was crystallized as both a ternary complex with the cofactor NADPH and the inhibitor trimethoprim as well as a binary complex with NADPH. The two types of complex crystallized isomorphously from polyethylene glycol using sitting-drop vapour diffusion. The crystal...Expand abstract
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