5.1.99.1 methylmalonyl-CoA epimerase - 5.1.99.2 16-hydroxysteroid epimerase - 5.1.99.3 allantoin racemase - 5.1.99.4 alpha-methylacyl-CoA racemase - 5.1.99.5 hydantoin racemase - 5.1.99.6 NAD(P)H-hydrate epimerase - 5.1.99.7 dihydroneopterin triphosphate 2'-epimerase - 5.1.99.8 7,8-dihydroneopterin epimerase -