Longer polyglutamine tracts in the androgen receptor are associated with moderate to severe undermasculinized genitalia in XY males

Abstract excerpt

The androgen receptor (AR) is essential to the normal development of the male internal and external genitalia. Consequently, impairment of AR function can result in undermasculinized genitalia that vary from a completely female appearance to isolated hypospadias. Since in vitro studies demonstrate that AR function is reduced by expansion of the polyglutamine tract within the receptor [AR(Gln)(n)]; this study...

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