Inverted repeat structure of the Sry locus in mice.

Gubbay, J; Vivian, N; Economou, A; Jackson, D; Goodfellow, P; Lovell-Badge, R · Proc Natl Acad Sci U S A · 1992

basic_science · Level V

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Abstract

The testis-determining gene Sry is located on the short arm of the mouse Y chromosome in a region known to have undergone duplications and rearrangements in comparison with the equivalent portion of the human Y chromosome. Detailed analysis of the Sry genomic locus reveals a further difference in that the mouse Sry open reading frame lies within 2.8 kilobases of unique sequence at the center of a large inverted repeat. This repeat, which is found in both Mus musculus musculus and Mus musculus domesticus Y chromosomes, is not present at the human SRY locus. Recombination involving the repeat region may have led to an 11-kilobase deletion, precisely excising Sry in a line of XY female mice.

Medical subject headings