Abstract:
:A new gene, designated Smcx, was cloned from the mouse X chromosome by its homology to the Y located gene Smcy. Using direct in situ hybridisation Smcx was mapped to the distal end of the mouse X chromosome (XF2-XF4) and its human homologue, SMCX, was mapped to proximal Xp (Xp11.1-Xp11.2). Further meiotic mapping in the mouse placed Smcx in the Plp-Pdha1 interval. As Smcx/SMCX have widely expressed homologues on the Y chromosome, they appeared good candidates for genes that escape X-inactivation. In the human we show this to be the case as SMCX is expressed in hamster-human hybrids containing either an active or inactive human X chromosome. Two alleles of Smcx were found to be expressed in T(16;X)16H female mice despite the intact X chromosome being inactive in all cells. This indicates that Smcx is also not subject to X-inactivation and provides the first example of a gene that is expressed from inactive and active X chromosomes in the mouse.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Agulnik AI,Mitchell MJ,Mattei MG,Borsani G,Avner PA,Lerner JL,Bishop CEdoi
10.1093/hmg/3.6.879subject
Has Abstractpub_date
1994-06-01 00:00:00pages
879-84issue
6eissn
0964-6906issn
1460-2083journal_volume
3pub_type
杂志文章abstract::Despite extensive progress in Huntington's disease (HD) research, very little is known about the association of epigenetic variation and HD pathogenesis in human brain tissues. Moreover, its contribution to the tissue-specific transcriptional regulation of the huntingtin gene (HTT), in which HTT expression levels are ...
journal_title:Human molecular genetics
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更新日期:2004-04-01 00:00:00
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journal_title:Human molecular genetics
pub_type: 杂志文章
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更新日期:1996-12-01 00:00:00
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