the highly purified ( 75-fold ) enzyme showed activity toward digitoxigenin-monodigitoxoside and slight activity toward digitoxigenin-bisdigitoxoside , whereas digitoxin and substrates for p-nitrophenol , 17 beta-oh steroid , and 3 alpha-oh steroid udp-glucuronosyltransferases were not glucuronidated .
C0012257
digitoxigenin
C0012258
digitoxin