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Gene. 1999 Nov 15;240(1):233-8.

Human and mouse SYBL1 gene structure and expression.

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  • 1International Institute of Genetics and Biophysics, CNR, 80125, Naples, Italy.

Abstract

SYBL1 is a gene in the 320kb human pseudo-autosomal region at the terminus of Xq and Yq. In contrast to other pseudoautosomal genes, SYBL1 is inactivated on one X in every female cell, and is also inactive on the Y of male cells. Hypermethylation of the CpG island associated with the human gene is involved in this phenomenon. In an attempt to further examine its regulation, the genomic organization of the X-linked mouse Sybl1 homolog was analyzed and compared with the human gene. Human and mouse show the same exon number, exon-intron junctions and a highly conserved basal promoter. The structural and functional conservation of basal regulatory regions suggests that inactivation is imposed by similar auxiliary epistatic regulatory mechanism.

PMID:
10564831
[PubMed - indexed for MEDLINE]
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