. . . "Specifies the reaction direction of the interaction catalyzed by this instance of the catalysis class.\n\nPossible values of this slot are:\n\nREVERSIBLE: Interaction occurs in both directions in physiological settings.\n\nPHYSIOL-LEFT-TO-RIGHT\nPHYSIOL-RIGHT-TO-LEFT\nThe interaction occurs in the specified direction in physiological settings, because of several possible factors including the energetics of the reaction, local concentrations\nof reactants and products, and the regulation of the enzyme or its expression.\n\nIRREVERSIBLE-LEFT-TO-RIGHT\nIRREVERSIBLE-RIGHT-TO-LEFT\nFor all practical purposes, the interactions occurs only in the specified direction in physiological settings, because of chemical properties of the reaction.\n\n(This definition from EcoCyc)"^^ . "Specifies the reaction direction of the interaction catalyzed by this instance of the catalysis class.\n\nPossible values of this slot are:\n\nREVERSIBLE: Interaction occurs in both directions in physiological settings.\n\nPHYSIOL-LEFT-TO-RIGHT\nPHYSIOL-RIGHT-TO-LEFT\nThe interaction occurs in the specified direction in physiological settings, because of several possible factors including the energetics of the reaction, local concentrations\nof reactants and products, and the regulation of the enzyme or its expression.\n\nIRREVERSIBLE-LEFT-TO-RIGHT\nIRREVERSIBLE-RIGHT-TO-LEFT\nFor all practical purposes, the interactions occurs only in the specified direction in physiological settings, because of chemical properties of the reaction.\n\n(This definition from EcoCyc)"^^ . "Specifies the reaction direction of the interaction catalyzed by this instance of the catalysis class.\n\nPossible values of this slot are:\n\nREVERSIBLE: Interaction occurs in both directions in physiological settings.\n\nPHYSIOL-LEFT-TO-RIGHT\nPHYSIOL-RIGHT-TO-LEFT\nThe interaction occurs in the specified direction in physiological settings, because of several possible factors including the energetics of the reaction, local concentrations\nof reactants and products, and the regulation of the enzyme or its expression.\n\nIRREVERSIBLE-LEFT-TO-RIGHT\nIRREVERSIBLE-RIGHT-TO-LEFT\nFor all practical purposes, the interactions occurs only in the specified direction in physiological settings, because of chemical properties of the reaction.\n\n(This definition from EcoCyc)"^^ . . . .