Characterization of the substrate mimic bound to engineered prostacyclin synthase in solution using high-resolution NMR spectroscopy and mutagenesis: implication of the molecular mechanism in biosynthesis of prostacyclin.

Abstract excerpt

High-resolution NMR spectroscopy was used to determine the docking of a substrate (prostaglandin H2) mimic (U46619) to the engineered prostacyclin (PGI2) synthase (PGIS) in solution. The binding of U46619 to the PGIS protein was demonstrated by 1D NMR titration, and the significant perturbation of the chemical shifts of protons at C-11, H2C, and H20 of U46619 were observed upon U46619 binding to the engineered...

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