http://www.cnr.it/ontology/cnr/individuo/prodotto/ID169736
Epigenetic control of the critical region for premature ovarian failure on autosomal genes translocated to the X chromosome: a hypothesis. (Articolo in rivista)
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- Epigenetic control of the critical region for premature ovarian failure on autosomal genes translocated to the X chromosome: a hypothesis. (Articolo in rivista) (literal)
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- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s00439-007-0329-z (literal)
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Rizzolio F; Sala C; Alboresi S; Bione S; Gilli S; Goegan M; Pramparo T; Zuffardi O; Toniolo D. (2007)
Epigenetic control of the critical region for premature ovarian failure on autosomal genes translocated to the X chromosome: a hypothesis.
in Human genetics; Springer Berlin / Heildelberg, Berlin (Germania)
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- Rizzolio F; Sala C; Alboresi S; Bione S; Gilli S; Goegan M; Pramparo T; Zuffardi O; Toniolo D. (literal)
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- Department of Molecular Biology and Functional Genomics, San Raffaele Scientific Institute, Milan, Italy; Institute of Molecular Genetics, CNR, Pavia, Italy; Department of Pathology and Medical Genetics, University of Pavia, Pavia, Italy; DIBIT, San Raffaele Scientific Institute, Via Olgettina 58, 20132 Milan, Italy. (literal)
- Titolo
- Epigenetic control of the critical region for premature ovarian failure on autosomal genes translocated to the X chromosome: a hypothesis. (literal)
- Abstract
- Chromosomal rearrangements in Xq are frequently associated to premature ovarian failure (POF) and have contributed to define a POF critical region from Xq13.3 to Xq26. Search for X-linked genes responsible for the phenotype has been elusive as most rearrangements did not interrupt genes and many were mapped to gene deserts. We now report that ovary-expressed genes flanked autosomal breakpoints in four POF cases analyzed whose X chromosome breakpoints interrupted a gene poor region in Xq21, where no ovary-expressed candidate genes could be found. We also show that the global down regulation in the oocyte and up regulation in the ovary of X-linked genes compared to the autosomes is mainly due to genes in the POF critical region. We thus propose that POF, in X;autosome balanced translocations, may not only be caused by haploinsufficiency, but also by a oocyte-specific position effect on autosomal genes, dependent on dosage compensation mechanisms operating on the active X chromosome in mammals. (literal)
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