Abstract:
:Sex determination in humans is mediated through the expression of a testis-determining gene on the Y chromosome. In humans, a candidate gene for the testis-determining factor (TDF) that encodes a protein with a putative DNA-binding motif and has been isolated is termed SRY. Here we describe an XY sex-reversed female with pure gonadal dysgenesis who harbors a de novo nonsense mutation in the SRY open reading frame (SRY-orf). This single-basepair substitution results directly in the formation of a termination codon in the putative SRY DNA-binding motif, presumably leading to a nonfunctional gene product. This brings the number of reported XY sex-reversed females with de novo mutations in the known SRY-orf to three, each occurring in the putative DNA-binding domain. This provides further evidence to support SRY being TDF in humans and also indicates the functional importance of the putative DNA-binding domain of the SRY protein.
journal_name
Genomicsjournal_title
Genomicsauthors
McElreavey KD,Vilain E,Boucekkine C,Vidaud M,Jaubert F,Richaud F,Fellous Mdoi
10.1016/0888-7543(92)90164-nsubject
Has Abstractpub_date
1992-07-01 00:00:00pages
838-40issue
3eissn
0888-7543issn
1089-8646pii
0888-7543(92)90164-Njournal_volume
13pub_type
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