Application of octadecylsilyl-silica in purification studies related to the nontransformed rat ventral prostate androgen receptor

Autor: Farouk Radwan, Michel Carmel, Mostafa M. Elhilali, Francine Grondin, Michael Koutsilieris, Jean-Guy Lehoux, François Bouthillier
Rok vydání: 1988
Předmět:
Zdroj: The Prostate. 13(2)
ISSN: 0270-4137
Popis: We investigated the application of octadecylsilyl (ODS)-silica in studies related to characterization and purification of the nontransformed rat ventral prostate androgen receptor. The results indicated that ODS-silica successfully separates the free [3H]R1881 from the labeled [3H]R1881 transformed (4-5S) and nontransformed (8-9S) rat ventral prostate androgen receptors. Partial purification of the 8-9S receptor form was performed by the fractionation of rat cytosol using cartridges of the ODS-silica and fast-flow-rate phosphocellulose chromatography. Further purification was accomplished by differential chromatography (DEAE-cellulose and slow-flow-rate phosphocellulose chromatography). This partially purified 8-9S receptor, when analyzed on a gel permeation high-performance liquid chromatography column, resulted in a three-peak pattern of UV absorbance. One of these peaks corresponded to a 59-kD non[3H]R1881-binding protein and the remaining two corresponded to 270-kD and 190-kD[3H]R1881-binding proteins. These results demonstrate the usefulness of ODS-silica in androgen receptor studies. The association of a 59-kD nonsteroid binding protein with the nontransformed rat ventral prostate androgen receptor is discussed.
Databáze: OpenAIRE