Fiche publication


Date publication

mars 2018

Journal

American journal of human genetics

Auteurs

Membres identifiés du Cancéropôle Est :
Pr HUET Frédéric , Pr FAIVRE Laurence


Tous les auteurs :
Esteve C, Francescatto L, Tan PL, Bourchany A, De Leusse C, Marinier E, Blanchard A, Bourgeois P, Brochier-Armanet C, Bruel AL, Delarue A, Duffourd Y, Ecochard-Dugelay E, Hery G, Huet F, Gauchez P, Gonzales E, Guettier-Bouttier C, Komuta M, Lacoste C, Maudinas R, Mazodier K, Rimet Y, Rivière JB, Roquelaure B, Sigaudy S, Stephenne X, Thauvin-Robinet C, Thevenon J, Sarles J, Levy N, Badens C, Goulet O, Hugot JP, Katsanis N, Faivre L, Fabre A

Résumé

Despite the rapid discovery of genes for rare genetic disorders, we continue to encounter individuals presenting with syndromic manifestations. Here, we have studied four affected people in three families presenting with cholestasis, congenital diarrhea, impaired hearing, and bone fragility. Whole-exome sequencing of all affected individuals and their parents identified biallelic mutations in Unc-45 Myosin Chaperone A (UNC45A) as a likely driver for this disorder. Subsequent in vitro and in vivo functional studies of the candidate gene indicated a loss-of-function paradigm, wherein mutations attenuated or abolished protein activity with concomitant defects in gut development and function.

Mots clés

GCUNC-45

Référence

Am. J. Hum. Genet.. 2018 Mar 1;102(3):364-374