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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Localization of SRY by primed in situ labeling in XX and XY sex reversal.

Primed in situ labeling (PRINS) can be used to localize DNA segments too small to be detected by fluorescence in situ hybridization. By PRINS we identified the SRY gene in two XX males, a woman with XY gonadal dysgenesis, and an azoospermic male with Xp-Yp interchange. Because PRINS has been used generally in the study of repetitive sequences, we modified the technique for study of the single copy 2. 1-kb SRY sequence. SRY signals were identified at band Yp11.31p11.32 in normal XY males and in the woman with XY gonadal dysgenesis. SRY signals were identified on Xp22 in one XX male but not in the other. They were identified in the corresponding region (Xp22) of the der(X) in the azoospermic male with Xp-Yp interchange. SRY signals were not observed in normal XX females. Presence of SRY in DNA samples from the various subjects was confirmed by polymerase chain reaction. We conclude that PRINS is ideal for rapid localization of single copy genes and small DNA segments in general.[1]


  1. Localization of SRY by primed in situ labeling in XX and XY sex reversal. Kadandale, J.S., Wachtel, S.S., Tunca, Y., Wilroy, R.S., Martens, P.R., Tharapel, A.T. Am. J. Med. Genet. (2000) [Pubmed]
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