Abstract:
:Deletion of the distal short arm of chromosome 9 (9p) has been reported in a number of cases to be associated with gonadal dysgenesis and XY sex reversal, suggesting that this region contains one or more genes required in two copies for normal testis development. Recent studies have greatly narrowed the interval containing this putative autosomal testis-determining gene(s) to the distal portion of 9p24.3. We previously identified DMRT1, a human gene with sequence similarity to genes that regulate the sexual development of nematodes and insects. These genes contain a novel DNA-binding domain, which we named the DM domain. DMRT1 maps to 9p24. 3 and in adults is expressed specifically in the testis. We have investigated the possible role of DM domain genes in 9p sex reversal. We identified a second DM domain gene, DMRT2, which also maps to 9p24.3. We found that point mutations in the coding region of DMRT1 and the DM domain of DMRT2 are not frequent in XY females. We showed by fluorescence in situ hybridization analysis that both genes are deleted in the smallest reported sex-reversing 9p deletion, suggesting that gonadal dysgenesis in 9p-deleted individuals might be due to combined hemizygosity of DMRT1 and DMRT2.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Raymond CS,Parker ED,Kettlewell JR,Brown LG,Page DC,Kusz K,Jaruzelska J,Reinberg Y,Flejter WL,Bardwell VJ,Hirsch B,Zarkower Ddoi
10.1093/hmg/8.6.989subject
Has Abstractpub_date
1999-06-01 00:00:00pages
989-96issue
6eissn
0964-6906issn
1460-2083pii
ddc108journal_volume
8pub_type
杂志文章abstract::Tuberous sclerosis complex (TSC) is a genetic disorder caused by mutations in TSC1 or TSC2 resulting in hyperactivity of the mammalian target of rapamycin and disabling brain lesions. These lesions contain misplaced neurons enriched in hypoxia-inducible factor 1a (HIF1a). However, the relationship between TSC1/2 and H...
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pub_type: 临床试验,杂志文章
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更新日期:2012-06-01 00:00:00
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journal_title:Human molecular genetics
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journal_title:Human molecular genetics
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