Isolation and characterization of a steroid sulfatase cDNA clone: genomic deletions in patients with X-chromosome-linked ichthyosis.
1987; National Academy of Sciences; Volume: 84; Issue: 13 Linguagem: Inglês
10.1073/pnas.84.13.4519
ISSN1091-6490
AutoresAndrea Ballabio, Giancarlo Parenti, Rosalba Carrozzo, Gianfranco Sebastio, Generoso Andria, Veronica J. Buckle, Niall J. Fraser, Ian Craig, Mariano Rocchi, G. Cara Romeo,
Tópico(s)Sperm and Testicular Function
ResumoWe have isolated several cDNA clones from a lambda gt11 expression library by screening with antibodies prepared against the microsomal enzyme steroid sulfatase, which is deficient in classical X-chromosome-linked ichthyosis patients. One of these clones (p422) has been assigned by mapping with a somatic cell hybrid panel and by in situ hybridization to Xp22.3. Clone p422 therefore has a coincident localization with the previously identified locus for steroid sulfatase expression in the region of the X chromosome escaping from inactivation. Twelve steroid sulfatase-deficient patients, including eight cases of classical ichthyosis, were found to be deleted for genomic sequences detected by the clone.
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