two-step reaction
the product of step 1 catalyzed by the enzyme 1.14.14.162, 2-hydrohyliquiritigenin, subsequently converts to licodione spontaneously.
Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
1.14.14 With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor
1.14.14.162
R07198 Liquiritigenin + [Reduced NADPH---hemoprotein reductase] + Oxygen <=> Licodione + [Oxidized NADPH---hemoprotein reductase] + H2O