Scientific Programme & Abstracts from the International Meeting in Pediatric Endocrinology (IMPE)

impe0096p113 | Pituitary, Neuroendocrinology and Puberty | IMPE2023

Predicted structural destabilisation of GnRHR Arg139His pathogenic variant in a boy with hypogonadotrophic hypogonadism.

Urrutia Mariela , Brunello Franco , Sansó Gabriela , Castro Sebastián , Scaglia Paula , Izquierdo Agustín , Esnaola Azcoiti Maria , Gabriela Ropelato María , Grinspon Romina , Rey Rodolfo

The genetic defects underlying hypogonadotrophic hypogonadism (HH) are known in approximately 50% of cases. In normosmic patients, abnormal GnRH production or action may be due to defects in regulatory factors or in the genes encoding GnRH or GnRHR. Although many gene variants have been described in GNRHR (4q13.2), the potential impact of structural alterations of the resulting mutant proteins have not been studied. In this study, we analysed the 3D-structure of the variant Gn...