Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

A novel X-linked gene, DXS8237E, was isolated from human fetal brain cDNA, and its 3' end was mapped to within 20 kb upstream of UBE1 in Xp11.23. A 1.3-kb cDNA for DXS8237E detects homologous sequences in other mammals and a 3-kb mRNA that is widely expressed in human cell lines and mouse tissues. Sequence analysis indicated that the 1.3-kb cDNA contains the 3' end of the DXS8237E gene, but the sequence shows no significant homology to known genes. DXS8237E was shown to be subject to X inactivation in five somatic cell hybrids that contain an inactive human X chromosome but no active homologue. Since UBE1 escapes X inactivation, DXS8237E and UBE1 are the closest mapped genes with discordant X inactivation profiles. Sequences in the vicinity of these two genes may be important determinants of X inactivation status.

Original publication




Journal article



Publication Date





135 - 138


Animals, Base Sequence, Chromosome Mapping, Cricetinae, DNA Primers, DNA, Complementary, Dosage Compensation, Genetic, Female, Gene Expression, Genetic Linkage, Genetic Markers, Humans, Hybrid Cells, Ligases, Mice, Molecular Sequence Data, RNA, Messenger, Ubiquitin-Protein Ligases, X Chromosome