| enol | A compound possessing a hydroxyl group (alcohol) attached to a doubly bonded (ethylenic) carbon atom (-CH==CH(OH)-); properly italicised when attached as a prefix or infix to an otherwise complete name; e.g., enol pyruvate; phosphoenolpyruvate; usually in equilibrium with its keto tautomer. Origin: -ene + -ol (05 Mar 2000) |
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| enol pyruvate | CH2==C(OH)-COO-un, the form of pyruvate encountered in the biologically important phosphoenolpyruvate (enol pyruvate phosphate), not in the free form. (05 Mar 2000) |
| enolase | <enzyme> An enzyme catalyzing the reversible dehydration of 2-phospho-d-glycerate to phosphoenolpyruvate and water; a step in both glycolysis and gluconeogenesis; several isozymes exist; inhibited by F-. Synonym: phosphopyruvate hydratase. (05 Mar 2000) |
| enolization | Conversion of a keto to an enol form; e.g., CH3-CO-COOH → CH2==C(OH)COOH. (05 Mar 2000) |