Journal article

Mutations in MAP3K1 cause 46,XY disorders of sex development and implicate a common signal transduction pathway in human testis determination

A Pearlman, J Loke, C Le Caignec, S White, L Chin, A Friedman, N Warr, J Willan, D Brauer, C Farmer, E Brooks, C Oddoux, B Riley, S Shajahan, G Camerino, T Homfray, AH Crosby, J Couper, A David, A Greenfield Show all

American Journal of Human Genetics | Published : 2010

Abstract

Investigations of humans with disorders of sex development (DSDs) resulted in the discovery of many of the now-known mammalian sex-determining genes, including SRY, RSPO1, SOX9, NR5A1, WT1, NR0B1, and WNT4. Here, the locus for an autosomal sex-determining gene was mapped via linkage analysis in two families with 46,XY DSD to the long arm of chromosome 5 with a combined, multipoint parametric LOD score of 6.21. A splice-acceptor mutation (c.634-8T>A) in MAP3K1 segregated with the phenotype in the first family and disrupted RNA splicing. Mutations were demonstrated in the second family (p.Gly616Arg) and in two of 11 sporadic cases (p.Leu189Pro, p.Leu189Arg) - 18% prevalence in this cohort of s..

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University of Melbourne Researchers