SEARCH Articles Figures Tables Fumarate hydratase concerted reaction Fumarate hydratase fumarase Fumarate hydratase mechanisms Fumarate hydratase pH dependence Fumarate hydratase rates of substrate exchange Fumarate hydratase turnover number Hydratase Hydratases fumarate hydratase Hydratases fumarate hydratase Secondary kinetic isotope effect on fumarate hydratase