Evolution of Enzymatic Activities in the Enolase Superfamily: Stereochemically Distinct Mechanisms in Two Families of cis , cis -Muconate Lactonizing Enzymes † ‡

Evolution of Enzymatic Activities in the Enolase Superfamily: Stereochemically Distinct Mechanisms in Two Families of cis , cis -Muconate Lactonizing Enzymes † ‡