title: Transfer of xylose to steroids by rabbit liver microsomes.
abstract: Rabbit liver microsomal preparations can transfer xylose from UDP-xylose to estron, 17alpha-estradiol, and 17beta-estradiol, and, in poorer yield, to diethylstilbestrol and p-nitrophenol. No transfer of xylose to estriol, testosterone, epitestosterone or 17alpha-estradiol 3-glucuronide could be demonstrated. The xyloside of [6,7-3H]estrone which was formed by liver microsomes crystallized to constant specific activity with estrone beta-D-xylopyranoside, the chemical preparation of which is described.
mesh_terms: D000818:Animals; D004958:Estradiol / Q000378:metabolism; D004970:Estrone / Q000378:metabolism; D007700:Kinetics; D010430:Pentosyltransferases / Q000378:metabolism*; D011817:Rabbits; D014994:Xylose / Q000378:metabolism
chemical_list: D004970:Estrone; D004958:Estradiol; D014994:Xylose; D010430:Pentosyltransferases