Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-9-9
pubmed:abstractText
Recently, the polyglutamine-binding protein 1 (PQBP1) gene was found to be mutated in five of 29 families studied with X-linked mental retardation (XLMR) linked to Xp. The reported mutations include duplications or deletions of AG dinucleotides in the fourth coding exon that resulted in shifts of the open reading frame. Three of the five families with mutations in this newly identified XLMR gene have been reported previously. We characterized the phenotypic and neuropsychological features in the two unpublished families with aberrations in PQBP1 and in a family reported 10 years ago. In total, seven patients diagnosed with aberrations in this gene were examined, including a newly identified patient at 18 months of age. Additionally, the features were compared to those reported in the literature of three other families, comprising MRXS3 (Sutherland-Haan syndrome) MRX55 and MRXS8 (Renpenning syndrome). Characteristics seen in these patients are microcephaly, lean body habitus, short stature, striking facial appearance with long narrow faces, upward slant of the eyes, malar hypoplasia, prognathism, high-arched palate and nasal speech. In addition, small testes and midline defects as anal atresia or imperforate anus, clefting of palate and/or uvula, iris coloboma and Tetralogy of Fallot are seen in several patients. These observations contribute to the phenotypic knowledge of patients with PQBP1 mutations and make this XLMR syndrome well recognizable to clinicians.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0009-9163
pubmed:author
pubmed:issnType
Print
pubmed:volume
66
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
318-26
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Genotype-phenotype studies in three families with mutations in the polyglutamine-binding protein 1 gene (PQBP1).
pubmed:affiliation
Department of Human Genetics, University Medical Center, Nijmegen, The Netherlands. t.kleefstra@antrg.umcn.nl
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't