Abstract：
:The first component of the mitochondrial electron-transport chain is especially complex, consisting of 19 nuclear and seven mitochondrion-encoded subunits. Accordingly, a wide range of clinical manifestations are produced by the various mutations occurring in human populations. In this study, we analyze the subunit structure of complex I in fibroblasts from two patients who have distinct clinical phenotypes associated with complex I deficiency. The first patient died in the second week of life from overwhelming lactic acidosis. Severe complex I deficiency was evident in her fibroblasts, since alanine oxidation was markedly reduced whereas succinate oxidation was normal. Absence of a 20-kDa subunit was demonstrable when newly synthesized proteins were immunoprecipitated from pulse-labeled fibroblasts by anti-complex I antibody. Disordered assembly or decreased stability of the complex was suggested by deficiency of multiple subunits on Western immunoblots. The second patient exhibited a milder clinical phenotype, characterized by moderate lactic acidosis and developmental delay in childhood and by onset of seizures at 8 years of age. Oxidation studies demonstrated expression of the complex I deficiency in fibroblasts, but no subunit abnormalities were detected by immunoprecipitation or Western immunoblotting. This report demonstrates the utility of cultured fibroblasts in studying mutations affecting synthesis and assembly of complex I.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Slipetz DM,Goodyer PR,Rozen Rsubject
Has Abstractpub_date
1991-06-01 00:00:00pages
1121-6issue
6eissn
0002-9297issn
1537-6605journal_volume
48pub_type
杂志文章abstract：:At least 40% of families affected with cerebral cavernous malformation have a mutation in Krit1. We previously identified two point mutations in Krit1 leading to changes in amino acids (D137G and Q210E) in two different families. Further RNA analysis reveals that both point mutations actually activate cryptic splice-d...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/340604
更新日期：2002-06-01 00:00:00
abstract：:Mutations in the progressive ankylosis gene (Ank/ANKH) cause surprisingly different skeletal phenotypes in mice and humans. In mice, recessive loss-of-function mutations cause arthritis, ectopic crystal formation, and joint fusion throughout the body. In humans, some dominant mutations cause chondrocalcinosis, an adul...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/509881
更新日期：2006-12-01 00:00:00
abstract：:Recent studies suggest that hereditary prostate cancer is a complex disease involving multiple susceptibility genes and variable phenotypic expression. While conducting a genomewide search on 162 North American families with > or =3 members affected with prostate cancer (PRCA), we found evidence for linkage to chromos...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/302994
更新日期：2000-07-01 00:00:00
abstract：:The Friedreich ataxia (FA) mutation has recently been identified as an unstable trinucleotide GAA repeat present 7-22 times in the normal population but amplified as many as > 1,000 times in FA. Since it is an autosomal recessive disease, FA does not show typical features observed in other dynamic mutation disorders, ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/513887
更新日期：1997-07-01 00:00:00
abstract：:Linkage analysis of phenylketonurics has shown a strong association between the DNA haplotype at the phenylalanine hydroxylase (PAH) locus and phenylketonuria (PKU). Similarly, a genetic linkage between less severe forms of hyperphenylalaninemia (HPA) and the PAH locus has been suggested. In the present study we analy...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1990-10-01 00:00:00
abstract：:We report the transmission of HLA haplotypes and Gm allotypes in 97 members of a single kindred containing 257 individuals, 45 of whom were determined by clinical examination, autopsy, or historical data to have had Alzheimer disease (AD). Extensive inbreeding suggests that more than one gene may contribute to suscept...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1983-05-01 00:00:00
abstract：:Curry-Jones syndrome (CJS) is a multisystem disorder characterized by patchy skin lesions, polysyndactyly, diverse cerebral malformations, unicoronal craniosynostosis, iris colobomas, microphthalmia, and intestinal malrotation with myofibromas or hamartomas. Cerebellar medulloblastoma has been described in a single af...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2016.04.007
更新日期：2016-06-02 00:00:00
abstract：:We have previously reported that an X-linked recessive form of chronic idiopathic intestinal pseudo-obstruction (CIIPX) maps to Xq28. To select candidate genes for the disease, we analyzed the expression in murine fetal brain and intestine of 56 genes from the critical region. We selected and sequenced seven genes and...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/513321
更新日期：2007-04-01 00:00:00
abstract：:The hyper-IgE syndrome (HIES) is a rare primary immunodeficiency characterized by recurrent skin abscesses, pneumonia, and highly elevated levels of serum IgE. HIES is now recognized as a multisystem disorder, with nonimmunologic abnormalities of the dentition, bones, and connective tissue. HIES can be transmitted as ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/302547
更新日期：1999-09-01 00:00:00
abstract：:Results of autism linkage studies have been difficult to interpret across research groups, prompting the use of ever-increasing sample sizes to increase power. However, increasing sample size by pooling disparate collections for a single analysis may, in fact, not increase power in the face of genetic heterogeneity. H...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/429345
更新日期：2005-04-01 00:00:00
abstract：:We recently identified a mutation in the I-kappa B kinase associated protein (IKBKAP) gene as the major cause of familial dysautonomia (FD), a recessive sensory and autonomic neuropathy. This alteration, located at base pair 6 of the intron 20 donor splice site, is present on >99.5% of FD chromosomes and results in ti...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/368263
更新日期：2003-03-01 00:00:00
abstract：:Stickler syndrome is a dominantly inherited disorder characterized by arthropathy, midline clefting, hearing loss, midfacial hypoplasia, myopia, and retinal detachment. These features are highly variable both between and within families. Mutations causing the disorder have been found in the COL2A1 and COL11A1 genes. P...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/S0002-9297(07)62938-3
更新日期：2000-11-01 00:00:00
abstract：:Idiopathic torsion dystonia (ITD) is characterized by involuntary twisting movements and postures. A gene for this disorder, DYT1, was mapped to chromosome 9q34 in 12 Ashkenazi Jewish (AJ) families and one large non-Jewish kindred. In the AJ population, strong linkage disequilibrium exists between DYT1 and adjacent ma...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：:Ten cases of small ring chromosomes which did not stain with distamycinA/DAPI and did not possess satellite regions associated with nucleolus-organizing regions are described. In situ hybridization with a battery of biotinylated pericentric repeat probes specific either for individual chromosomes or for groups of chro...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1991-04-01 00:00:00
abstract：:Admixture mapping (also known as "mapping by admixture linkage disequilibrium," or MALD) provides a way of localizing genes that cause disease, in admixed ethnic groups such as African Americans, with approximately 100 times fewer markers than are required for whole-genome haplotype scans. However, it has not been pos...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/420856
更新日期：2004-05-01 00:00:00
abstract：:The fourth-year medical student elective in clinical genetics has been enhanced by the addition of a problem-solving project. The assignment requires students to pose and answer a practical question about a professionally relevant genetic problem. Exemplary questions and the details of the exercise are given. Six of 1...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1991-08-01 00:00:00
abstract：:Although balanced translocations are among the most common human chromosomal aberrations, the constitutional t(11;22)(q23;q11) is the only known recurrent non-Robertsonian translocation. Evidence indicates that de novo formation of the t(11;22) occurs during meiosis. To test the hypothesis that spatial proximity of ch...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/507652
更新日期：2006-09-01 00:00:00
abstract：:The gene(s) whose expression is regulated by allergy risk variants is unknown for many loci identified through genome-wide association studies. Addressing this knowledge gap might point to new therapeutic targets for allergic disease. The aim of this study was to identify the target gene(s) and the functional variant(...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2015.06.010
更新日期：2015-08-06 00:00:00
abstract：:To study the genetic determinism of multifactorial diseases in large panmictic populations, a strategy consists in looking for an association with markers closely linked to candidate genes. A distribution of marker genotypes different in patients and controls may indicate that the candidate gene is involved in the dis...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1996-04-01 00:00:00
abstract：:Quantitative predictions of rates of Down syndrome offspring as a function of maternal serum alpha-fetoprotein (MSAFP) values and of maternal age were reviewed. Comparisons were made of 35-year-equivalent-risk values by maternal age, that is, MSAFP values (at various maternal ages) that predict the risk (of a Down syn...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1988-08-01 00:00:00
abstract：:Genome-wide association studies (GWASs) have identified many genetic variants underlying complex traits. Many detected genetic loci harbor variants that associate with multiple-even distinct-traits. Most current analysis approaches focus on single traits, even though the final results from multiple traits are evaluate...
journal_title：American journal of human genetics
pub_type： 杂志文章,meta分析
doi：10.1016/j.ajhg.2014.11.011
更新日期：2015-01-08 00:00:00
abstract：:Osteogenesis imperfecta (OI) is a heterogenous group of genetic disorders of bone fragility. OI type V is an autosomal-dominant disease characterized by calcification of the forearm interosseous membrane, radial head dislocation, a subphyseal metaphyseal radiodense line, and hyperplastic callus formation; the causativ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2012.06.005
更新日期：2012-08-10 00:00:00
abstract：:Uniparental disomy (UPD) refers to the presence of two copies of a chromosome from one parent and none from the other parent. In genetic studies of UPDs, many genetic markers are usually used to identify the stage of nondisjunction that leads to UPD and to uncover the associated unusual patterns of recombinations. How...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/303072
更新日期：2000-10-01 00:00:00
abstract：:A current approach to mapping complex-disease-susceptibility loci in genome-wide association (GWA) studies involves leveraging the information in a reference database of dense genotype data. By modeling the patterns of linkage disequilibrium in a reference panel, genotypes not directly measured in the study samples ca...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2009.01.013
更新日期：2009-02-01 00:00:00
abstract：:Congenital disorders of glycosylation (CDGs) are disorders of abnormal protein glycosylation that affect multiple organ systems. Because most CDGs have been described in only a few individuals, our understanding of the associated phenotypes and the mechanisms of individual survival are limited. In the process of study...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2015.12.007
更新日期：2016-02-04 00:00:00
abstract：:Epigenetic dysregulation has emerged as a recurring mechanism in the etiology of neurodevelopmental disorders. Two such disorders, CHARGE and Kabuki syndromes, result from loss of function mutations in chromodomain helicase DNA-binding protein 7 (CHD7LOF) and lysine (K) methyltransferase 2D (KMT2DLOF), respectively. A...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2017.04.004
更新日期：2017-05-04 00:00:00
abstract：:X-linked adrenoleukodystrophy (ALD), a neurodegenerative disorder associated with impaired beta-oxidation of very-long-chain fatty acids (VLCFA), is due to mutations in a gene encoding a peroxisomal ATP-binding cassette (ABC) transporter (ALD protein [ALDP]). We analyzed the open reading frame of the ALD gene in 44 Fr...
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：:Estimation of the components of variance for a quantitative trait allows one to evaluate both the degree to which genetics influences the trait and the trait's underlying genetic architecture. For particular traits, the estimates also may have implications for discriminating between potential models of selection and f...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/320112
更新日期：2001-05-01 00:00:00
abstract：:A cloned 2.2 Eco RI segment of interspersed repetitive DNA was hybridized to genomic DNA from a mentally retarded patient with an interstitial deletion in the long arm of one chromosome 12 (12q-). Under hybridization conditions of high stringency, one prominent 2.2-kilobase (kb) Eco RI fragment demonstrated reduced au...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1984-07-01 00:00:00
abstract：:Despite the fact that hundreds of genes are known to affect fertility in animal models, relatively little is known about genes that influence natural fertility in humans. To broadly survey genes contributing to variation in male fertility, we conducted a genome-wide association study (GWAS) of two fertility traits (fa...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2012.04.016
更新日期：2012-06-08 00:00:00
