3.1.1.84	cocaine + H2O = ecgonine methyl ester + benzoate	the entire hydrolysis reaction consists of four reaction steps, including the nucleophilic attack on the carbonyl carbon of benzoyl ester group by the hydroxyl group of Ser117, dissociation of benzoyl ester group, nucleophilic attack on the carbonyl carbon of benzoyl ester group by water, and finally dissociation between the (-)-cocaine benzoyl group and Ser117 of CocE. The third reaction step involving the nucleophilic attack of a water molecule is rate-determining	698483