Abstract:
BACKGROUND:Intellectual disability (ID) is one of the most common forms of disability worldwide, displaying a wide range of aetiologies and affecting nearly 2% of the global population. OBJECTIVE:To describe a novel autosomal recessive form of ID with strabismus and its underlying aetiology. MATERIALS AND METHODS:Autozygosity mapping, linkage analysis and exome sequencing were performed in a large multiplex consanguineous family that segregates ID and strabismus. Exome sequencing was independently performed in three other consanguineous families segregating the same disease. Direct sequencing of the resulting candidate gene was performed in four additional families with the same phenotype. RESULTS:A single missense mutation was identified in ADAT3 in all studied families on an ancient ancestral haplotype. This gene encodes one of two eukaryotic proteins that are necessary for the deamination of adenosine at position 34 to inosine in t-RNA. Our results show the first human mutation in the t-RNA editing machinery and expand the landscape of pathways involved in the pathogenesis of ID.
journal_name
J Med Genetjournal_title
Journal of medical geneticsauthors
Alazami AM,Hijazi H,Al-Dosari MS,Shaheen R,Hashem A,Aldahmesh MA,Mohamed JY,Kentab A,Salih MA,Awaji A,Masoodi TA,Alkuraya FSdoi
10.1136/jmedgenet-2012-101378subject
Has Abstractpub_date
2013-07-01 00:00:00pages
425-30issue
7eissn
0022-2593issn
1468-6244pii
jmedgenet-2012-101378journal_volume
50pub_type
杂志文章abstract::DIDMOAD is usually considered an autosomal recessive condition, with wide phenotypic variation, but the possibility of mitochondrial mutations occurring in this condition has been considered. A 19 year old man presented with long standing diabetes mellitus, optic atrophy, and grand mal seizures. Further investigations...
journal_title:Journal of medical genetics
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doi:10.1136/jmg.31.4.328
更新日期:1994-04-01 00:00:00
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doi:10.1136/jmg.32.12.942
更新日期:1995-12-01 00:00:00
abstract::Two cases are reported of patients with deletions of chromosome 5q. Both have familial adenomatous polyposis (FAP) and mild mental retardation. In both, macroscopic polyposis was confined to the proximal colon in adult life (in their thirties) although microscopic adenomatosis was shown in the more distal colon with o...
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更新日期:1993-05-01 00:00:00
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doi:10.1136/jmg.38.8.519
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pub_type: 杂志文章
doi:10.1136/jmg.2008.063800
更新日期:2009-05-01 00:00:00
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doi:10.1136/jmg.32.8.645
更新日期:1995-08-01 00:00:00
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pub_type: 杂志文章,多中心研究
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更新日期:1995-05-01 00:00:00
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pub_type: 信件
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更新日期:2005-09-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.1136/jmg.32.2.117
更新日期:1995-02-01 00:00:00
abstract::To illustrate the variable clinical presentations and rates of progression in familial hypertrophic cardiomyopathy (FHC), phenotypes and genotypes were compared in three FHC families with different genetic defects. In the first family, the FHC abnormality was a protein truncating mutation (Gln969X) in the cardiac myos...
journal_title:Journal of medical genetics
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doi:10.1136/jmg.35.3.183
更新日期:1998-03-01 00:00:00
abstract::We present a stillborn male infant with premaxillary agenesis, bilateral microphthalmos, alobar holoprosencephaly, hydrocephalus, ventricular and atrial septal defects, small penis, bilateral cryptorchidism, and bilateral upper limb postaxial polydactyly. ...
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pub_type: 杂志文章
doi:10.1136/jmg.24.11.714
更新日期:1987-11-01 00:00:00
abstract:INTRODUCTION:Medullary cystic kidney disease 2 (MCKD2) and familial juvenile hyperuricaemic nephropathy (FJHN) are both autosomal dominant renal diseases characterised by juvenile onset of hyperuricaemia, gout, and progressive renal failure. Clinical features of both conditions vary in presence and severity. Often defi...
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pub_type: 杂志文章
doi:10.1136/jmg.39.12.882
更新日期:2002-12-01 00:00:00
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pub_type: 杂志文章
doi:10.1136/jmg.34.8.670
更新日期:1997-08-01 00:00:00
abstract::This paper describes a genetically male infant with impaired male sex development and partial 9p monosomy. The external genitalia were ambiguous with microphallus (penile length at birth 10 mm, mean age matched normal length 29 mm (SD 5)), hypospadias, and hypoplastic scrotum. The tests were undescended and severely h...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.34.4.331
更新日期:1997-04-01 00:00:00
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journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.31.7.534
更新日期:1994-07-01 00:00:00
abstract:OBJECTIVE:To identify genetic causes of COACH syndrome BACKGROUND:COACH syndrome is a rare autosomal recessive disorder characterised by Cerebellar vermis hypoplasia, Oligophrenia (developmental delay/mental retardation), Ataxia, Coloboma, and Hepatic fibrosis. The vermis hypoplasia falls in a spectrum of mid-hindbrai...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.2009.067249
更新日期:2010-01-01 00:00:00
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journal_title:Journal of medical genetics
pub_type: 信件
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更新日期:2007-12-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2003-05-01 00:00:00
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journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.14.2.142
更新日期:1977-04-01 00:00:00
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journal_title:Journal of medical genetics
pub_type: 杂志文章
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更新日期:1988-12-01 00:00:00
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journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2016-104302
更新日期:2017-04-01 00:00:00
abstract::A sequential silver-Giemsa (SG) procedure is presented, initially to stain the p11 and q11 euchromatic bands and subsequently the q12 heterochromatic band of the human Y chromosomes. A three sub-band division of the q11 band can be identified. The same technique differentially stains the secondary constriction of chro...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.17.6.468
更新日期:1980-12-01 00:00:00
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journal_title:Journal of medical genetics
pub_type: 杂志文章
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更新日期:1978-04-01 00:00:00
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pub_type: 杂志文章
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更新日期:2014-05-01 00:00:00
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journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.17.1.34
更新日期:1980-02-01 00:00:00
abstract::A total of 102 families with Duchenne muscular dystrophy has been studied with linked DNA polymorphisms as an aid to estimating carrier risks for female relatives. Early work using probes RC8, L1.28, and pXUT23 gave very little clinically useful information because of the high recombination rates between these probes ...
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pub_type: 杂志文章
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更新日期:1986-12-01 00:00:00