Linked Life Data

10843173

Source:http://linkedlifedata.com/resource/pubmed/id/10843173

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-6-16
pubmed:abstractText
In Ullrich-Turner syndrome (UTS) patients, the presence of a Y-chromosome or Y-derived material has been documented in frequencies ranging from 4-61%. Mutations of SRY (testis-determining gene) constitute the cause of XY sex reversal in approximately 10-15% of females with pure gonadal dysgenesis. Most of these mutations have been described in the HMG (high mobility group) box of the gene, which is the region responsible for DNA binding and bending; however, various mutations outside the HMG box have been reported. We carried out molecular studies of the SRY gene in three patients with a UTS phenotype and bilateral streaks; two presented a 45,X/46,XY mosaic, and the third a Y marker chromosome. In two patients a missense mutation, S18N, was identified in the 5' non-HMG box region in DNA from blood and both streaks; this mutation was not identified in 75 normal males. Sequencing of the DNA region of interest was normal in the father and older brother of patient 1, demonstrating that in this patient the mutation was de novo. A previous report of a 46,XY patient with partial gonadal dysgenesis who presented the same mutation as our patients indicates the probable existence of a hot spot in this region of the SRY gene and strengthens the possibility that all gonadal dysgeneses constitute part of a spectrum of the same disorder. It also demonstrates that a single genetic abnormality can result in a wide range of phenotypic expression.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
85
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1908-11
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:10843173-Adolescent, pubmed-meshheading:10843173-Amino Acid Substitution, pubmed-meshheading:10843173-DNA, pubmed-meshheading:10843173-DNA-Binding Proteins, pubmed-meshheading:10843173-Female, pubmed-meshheading:10843173-Humans, pubmed-meshheading:10843173-In Situ Hybridization, Fluorescence, pubmed-meshheading:10843173-Karyotyping, pubmed-meshheading:10843173-Male, pubmed-meshheading:10843173-Mosaicism, pubmed-meshheading:10843173-Mutation, Missense, pubmed-meshheading:10843173-Nuclear Family, pubmed-meshheading:10843173-Nuclear Proteins, pubmed-meshheading:10843173-Sex Determination Processes, pubmed-meshheading:10843173-Sex-Determining Region Y Protein, pubmed-meshheading:10843173-Transcription Factors, pubmed-meshheading:10843173-Turner Syndrome, pubmed-meshheading:10843173-Y Chromosome
pubmed:year
2000
pubmed:articleTitle
A mutation in the 5' non-high mobility group box region of the SRY gene in patients with Turner syndrome and Y mosaicism.
pubmed:affiliation
Research Unit in Developmental Biology, Hospital de Pediatría, Instituto Mexicano del Seguro Social, Mexico DF.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't