Abstract:
:Patients with Joubert syndrome 2 (JBTS2) suffer from a neurological disease manifested by psychomotor retardation, hypotonia, ataxia, nystagmus, and oculomotor apraxia and variably associated with dysmorphism, as well as retinal and renal involvement. Brain MRI results show cerebellar vermis hypoplasia and additional anomalies of the fourth ventricle, corpus callosum, and occipital cortex. The disease has previously been mapped to the centromeric region of chromosome 11. Using homozygosity mapping in 13 patients from eight Ashkenazi Jewish families, we identified a homozygous mutation, R12L, in the TMEM216 gene, in all affected individuals. Thirty individuals heterozygous for the mutation were detected among 2766 anonymous Ashkenazi Jews, indicating a carrier rate of 1:92. Given the small size of the TMEM216 gene relative to other JBTS genes, its sequence analysis is warranted in all JBTS patients, especially those who suffer from associated anomalies.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Edvardson S,Shaag A,Zenvirt S,Erlich Y,Hannon GJ,Shanske AL,Gomori JM,Ekstein J,Elpeleg Odoi
10.1016/j.ajhg.2009.12.007subject
Has Abstractpub_date
2010-01-01 00:00:00pages
93-7issue
1eissn
0002-9297issn
1537-6605pii
S0002-9297(09)00568-0journal_volume
86pub_type
杂志文章abstract::Knowledge of haplotype phase is valuable for many analysis methods in the study of disease, population, and evolutionary genetics. Considerable research effort has been devoted to the development of statistical and computational methods that infer haplotype phase from genotype data. Although a substantial number of su...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/500808
更新日期:2006-03-01 00:00:00
abstract::Focal cortical dysplasia (FCD) is a major cause of the sporadic form of intractable focal epilepsies that require surgical treatment. It has recently been reported that brain somatic mutations in MTOR account for 15%-25% of FCD type II (FCDII), characterized by cortical dyslamination and dysmorphic neurons. However, t...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2017.01.030
更新日期:2017-03-02 00:00:00
abstract::The cloning of the CFTR gene has made it technically possible to avert the unwanted birth of a child with cystic fibrosis (CF). Several large trials offering prenatal CF carrier screening suggest that such screening is practical and that identified carriers generally use the information obtained. Therefore, a critical...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/302042
更新日期:1998-10-01 00:00:00
abstract::The AIMilano apoprotein variant is associated with a marked reduction of high density lipoprotein (HDL) cholesterol levels and with increased triglyceridemia. In spite of the low HDL-cholesterol (HDL-Ch), carriers do not generally show clinical signs of atherosclerosis. The biochemical disorder is linked to a molecula...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1985-11-01 00:00:00
abstract::Two familial and seven sporadic patients with neurofibromatosis 1-who showed dysmorphism, learning disabilities/mental retardation, and additional signs and carried deletions of the NF1 gene-were investigated by use of a two-step FISH approach to characterize the deletions. With FISH of YAC clones belonging to a 7-Mb ...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/302709
更新日期:2000-01-01 00:00:00
abstract::Lymphedema is the clinical manifestation of defects in lymphatic structure or function. Mutations identified in genes regulating lymphatic development result in inherited lymphedema. No mutations have yet been identified in genes mediating lymphatic function that result in inherited lymphedema. Survey microarray studi...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2010.04.010
更新日期:2010-06-11 00:00:00
abstract::Many individuals with abnormalities of mitochondrial respiratory chain complex III remain genetically undefined. Here, we report mutations (c.288G>T [p.Trp96Cys] and c.643C>T [p.Leu215Phe]) in CYC1, encoding the cytochrome c1 subunit of complex III, in two unrelated children presenting with recurrent episodes of ketoa...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2013.06.015
更新日期:2013-08-08 00:00:00
abstract::Achieving long-term expression of a therapeutic gene in a given hematopoietic lineage remains an important goal of gene therapy. Congenital erythropoietic porphyria (CEP) is a severe autosomal-recessive disorder characterized by a deficiency in uroporphyrinogen III synthase (UROS), the fourth enzyme of the heme biosyn...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2007.09.007
更新日期:2008-01-01 00:00:00
abstract::The identification of genetic variants implicated in human developmental disorders has been revolutionized by second-generation sequencing combined with international pooling of cases. Here, we describe seven individuals who have diverse yet overlapping developmental anomalies, and who all have de novo missense FBXW11...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2019.07.005
更新日期:2019-09-05 00:00:00
abstract::Richieri-Costa-Pereira syndrome is an autosomal-recessive acrofacial dysostosis characterized by mandibular median cleft associated with other craniofacial anomalies and severe limb defects. Learning and language disabilities are also prevalent. We mapped the mutated gene to a 122 kb region at 17q25.3 through identity...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2013.11.020
更新日期:2014-01-02 00:00:00
abstract::N-alpha-acetylation is a common co-translational protein modification that is essential for normal cell function in humans. We previously identified the genetic basis of an X-linked infantile lethal Mendelian disorder involving a c.109T>C (p.Ser37Pro) missense variant in NAA10, which encodes the catalytic subunit of t...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2018.03.004
更新日期:2018-05-03 00:00:00
abstract::Myoclonus-dystonia (M-D) is a movement disorder characterized by rapid muscle contractions and sustained twisting and repetitive movements and has recently been associated with mutations in the epsilon-sarcoglycan gene (SGCE). The mode of inheritance is autosomal dominant with reduced penetrance upon maternal transmis...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/344531
更新日期:2002-12-01 00:00:00
abstract::Ciliopathies are clinical disorders of the primary cilium with widely recognized phenotypic and genetic heterogeneity. In two Arab consanguineous families, we mapped a ciliopathy phenotype that most closely matches Joubert syndrome (hypotonia, developmental delay, typical facies, oculomotor apraxia, polydactyly, and s...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2019.02.018
更新日期:2019-04-04 00:00:00
abstract::Our previous studies have revealed a higher frequency of nonpolymorphic electrophoretic variants in blood samples from Amerindians than in similar samples from Caucasians and Japanese. Our present study finds, by contrast, that the frequency of deficiency variants of 11 erythrocyte enzymes, sampled in nine Amerindian ...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1984-05-01 00:00:00
abstract::Autosomal recessive Alport syndrome is a progressive hematuric glomerulonephritis characterized by glomerular basement membrane abnormalities and associated with mutations in either the COL4A3 or the COL4A4 gene, which encode the alpha3 and alpha4 type IV collagen chains, respectively. To date, mutation screening in t...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/302106
更新日期:1998-11-01 00:00:00
abstract::To investigate the molecular basis for the distinct neuronopathic phenotypes of Gaucher disease, acid beta-glucosidases expressed from mutant DNAs in Gaucher disease type 2 (acute) and type 3 (subacute) patients were characterized in fibroblasts and with the baculovirus expression system in insect cells. Expression of...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1991-09-01 00:00:00
abstract::An expanded G4C2 repeat in C9orf72 represents the most common known genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD). However, the lower limit for pathological expansions is unknown (the suggested cutoff is 30 repeats). It has been proposed that the expansion might have...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2015.04.016
更新日期:2015-06-04 00:00:00
abstract::Carotid intimal medial thickness (IMT) is a heritable quantitative measure of atherosclerosis. A genomewide linkage analysis was conducted to localize a quantitative-trait locus (QTL) influencing carotid IMT. Carotid IMT was measured in 596 men and 629 women from 311 extended families (1,242 sib pairs) in the Framingh...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/381559
更新日期:2004-02-01 00:00:00
abstract::Linkage markers at or close to the genes encoding the three major fibrillar collagens were used to analyze the segregation of these loci in six pedigrees with dominantly inherited Marfan syndrome. Four pedigrees were discordant at one of the Type I collagen loci (COL1A2), and, of these, two were discordant at the othe...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1987-12-01 00:00:00
abstract::Pelizaeus-Merzbacher disease (PMD) is an X-linked dysmyelinating disorder caused by abnormalities in the proteolipid protein (PLP) gene, which is essential for oligodendrocyte differentiation and CNS myelin formation. Although linkage analysis has shown the homogeneity at the PLP locus in patients with PMD, exonic mut...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1996-07-01 00:00:00
abstract::Multiple-synostosis syndrome is an autosomal dominant disorder characterized by progressive symphalangism, carpal/tarsal fusions, deafness, and mild facial dysmorphism. Heterozygosity for functional null mutations in the NOGGIN gene has been shown to be responsible for the disorder. However, in a cohort of six proband...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/503204
更新日期:2006-04-01 00:00:00
abstract::In linkage analysis, when the lod score is maximized over multiple genetic models, standard asymptotic approximation of the significance level does not apply. Monte Carlo methods can be used to estimate the p value, but procedures currently used are extremely inefficient. We propose a Monte Carlo procedure based on th...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1992-12-01 00:00:00
abstract::The sib-pair interval-mapping procedure of Fulker and Cardon is extended to take account of all available marker information on a chromosome simultaneously. The method provides a computationally fast multipoint analysis of sib-pair data, using a modified Haseman-Elston approach. It gives results very similar to those ...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1995-05-01 00:00:00
abstract::Attention-deficit/hyperactivity disorder (ADHD) is the most commonly diagnosed behavioral disorder in childhood and likely represents an extreme of normal behavior. ADHD significantly impacts learning in school-age children and leads to impaired functioning throughout the life span. There is strong evidence for a gene...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/342732
更新日期:2002-10-01 00:00:00
abstract::The introduction of stochastic methods in pedigree analysis has enabled geneticists to tackle computations intractable by standard deterministic methods. Until now these stochastic techniques have worked by running a Markov chain on the set of genetic descent states of a pedigree. Each descent state specifies the path...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract::Retinitis pigmentosa (RP) is a group of disorders characterized by progressive degeneration of the outer retina, resulting in night blindness, visual field loss, an abnormal electroretinogram, and characteristic retinal pigmentary changes. An important step in the understanding of RP has been the recognition that some...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::Acrodysostosis is a rare autosomal-dominant condition characterized by facial dysostosis, severe brachydactyly with cone-shaped epiphyses, and short stature. Moderate intellectual disability and resistance to multiple hormones might also be present. Recently, a recurrent mutation (c.1102C>T [p.Arg368*]) in PRKAR1A has...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1016/j.ajhg.2012.03.003
更新日期:2012-04-06 00:00:00
abstract::Multipoint linkage analysis is a powerful method for mapping a rare disease gene on the human gene map despite limited genotype and pedigree data. However, there is no standard procedure for determining a confidence interval for gene location by using multipoint linkage analysis. A genetic counselor needs to know the ...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:
更新日期:1990-07-01 00:00:00
abstract::Microsatellites are a major type of molecular markers in genetics studies. Their mutational dynamics are not clear. We investigated the patterns and characteristics of 97 mutation events unambiguously identified, from 53 multigenerational pedigrees with 630 subjects, at 362 autosomal dinucleotide microsatellite loci. ...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/338997
更新日期:2002-03-01 00:00:00
abstract::Meiotic recombination is essential for the segregation of chromosomes and the formation of normal haploid gametes, yet we know very little about the meiotic process in humans. We present the first (to our knowledge) recombination maps for every autosome in the human male obtained by new immunofluorescence techniques f...
journal_title:American journal of human genetics
pub_type: 杂志文章
doi:10.1086/382138
更新日期:2004-03-01 00:00:00