Abstract：
:Molecular analysis of the human beta-galactosidase gene revealed six different mutations in 10 of 11 Japanese GM1-gangliosidosis patients. They were the only abnormalities in each allele examined in this study. A 165-nucleotide duplication (positions 1103-1267) was found in two infantile patients, producing an abnormally large mRNA; one patient was probably a homozygote, and the other was a heterozygote of this mutation. The other two infantile patients had different mutations; a 123 Gly(GGG)----Arg(AGG) mutation in one patient and a 316 Tyr(TAT)----Cys(TGT) mutation in the other. A 201 Arg(CGC)----Cys(TGC) mutation, eliminating a BspMI site, was detected in a late-infantile/juvenile patient; the restriction-site analysis of amplified genomic DNA confirmed his heterozygosity for this mutation. A 51 Ile(ATC)----Thr(ACC) mutation was found in all five adult/chronic patients examined in this study. It created a SauI site, and restriction-site analysis confirmed that four patients were homozygous mutants. The other was a compound heterozygote for this mutation and another 457 Arg(CGA)----Gln(CAA) mutation. These mutant genes expressed markedly decreased or completely deficient enzyme activities in beta-galactosidase-deficient human fibroblasts transformed by adenovirus-SV40 recombinants. We conclude that gene mutations are heterogeneous in GM1-gangliosidosis but that the 51 Ile(ATC)----Thr(ACC) mutation is common among the Japanese adult/chronic cases. Genotype-phenotype correlations in GM1-gangliosidosis are briefly discussed.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Yoshida K,Oshima A,Shimmoto M,Fukuhara Y,Sakuraba H,Yanagisawa N,Suzuki Ysubject
Has Abstractpub_date
1991-08-01 00:00:00pages
435-42issue
2eissn
0002-9297issn
1537-6605journal_volume
49pub_type
杂志文章abstract：:We have isolated 68 new RFLP markers on human chromosome 6. Of these, 64 were localized on chromosomal bands by the fluorescent in-situ hybridization (FISH) method, 25 on the short arm and 39 on the long arm. Their distribution was uneven; the markers were localized predominantly in regions of R-positive banding. Elev...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
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：:In the present study, we report a kindred with hearing loss, congenital heart defects, and posterior embryotoxon, segregating as autosomal dominant traits. Six of seven available affected patients manifested mild-to-severe combined hearing loss, predominantly affecting middle frequencies. Two patients were diagnosed w...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/341327
更新日期：2002-07-01 00:00:00
abstract：:The DAX1 protein is an orphan nuclear hormone receptor based on sequence similarity in the putative ligand-binding domain (LBD). DAX1 mutations result in X-linked adrenal hypoplasia congenita (AHC). Our objective was to identify DAX1 mutations in a series of families, to determine the types of mutations resulting in A...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/301782
更新日期：1998-04-01 00:00:00
abstract：:Phenotypes are rarely consistent across genetic backgrounds and environments, but instead vary in many ways depending on allelic variants, unlinked genes, epigenetic factors, and environmental exposures. In the extreme, individuals carrying the same causal DNA sequence variant but on different backgrounds can be class...
journal_title：American journal of human genetics
pub_type： 杂志文章,评审
doi：10.1016/j.ajhg.2017.06.004
更新日期：2017-08-03 00:00:00
abstract：:Holoprosencephaly is the incomplete separation of the forebrain during embryogenesis. Both genetic and environmental etiologies have been determined for holoprosencephaly; however, a genetic etiology is not found in most cases. In this report, we present two unrelated individuals with semilobar holoprosencephaly who h...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2019.03.017
更新日期：2019-05-02 00:00:00
abstract：:Three uncommon stable Gm haplotypes, Gm3;23;--, Gm1,2,17;..;-- and Gm1,17;..;-- have been transmitted through 3 generations of two related Lebanese and Syrian families. No pathological consequence was noted in seven individuals, aged 14--65, whose sera were deficient for all the allotypes carried by the IgG3 chains. A...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1976-01-01 00:00:00
abstract：:The determination of gene-by-gene and gene-by-environment interactions has long been one of the greatest challenges in genetics. The traditional methods are typically inadequate because of the problem referred to as the "curse of dimensionality." Recent combinatorial approaches, such as the multifactor dimensionality ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/518312
更新日期：2007-06-01 00:00:00
abstract：:We consider sequential sampling of pedigrees for genetic analysis. Cannings and Thompson (1977) gave simple, general guidelines for valid sequential sampling schemes. We show that their formulation of the likelihood contains an error, which is, however, easily corrected so as to maintain the validity of the sequential...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1986-08-01 00:00:00
abstract：:About 70 individuals from Punjab were examined for some mtDNA polymorphisms, namely, the RFLPs of the six classical enzymes (HpaI, BamHI, HaeII, MspI, AvaII, and Hin-cII) and for the sites AluI(7,025), DdeI(10,394), and AluI(10,397). The AluI(7,025) polymorphic site was also investigated in 96 Indians from Uttar Prade...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1996-10-01 00:00:00
abstract：:Rheumatoid arthritis (RA) is an autoimmune/inflammatory disorder with a complex genetic component. We report the first major genomewide screen of multiplex families with RA gathered in the United States. The North American Rheumatoid Arthritis Consortium, using well-defined clinical criteria, has collected 257 familie...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/319518
更新日期：2001-04-01 00:00:00
abstract：:To identify genetic factors contributing to type 2 diabetes (T2D), we performed large-scale meta-analyses by using a custom ∼50,000 SNP genotyping array (the ITMAT-Broad-CARe array) with ∼2000 candidate genes in 39 multiethnic population-based studies, case-control studies, and clinical trials totaling 17,418 cases an...
journal_title：American journal of human genetics
pub_type： 杂志文章,meta分析
doi：10.1016/j.ajhg.2011.12.022
更新日期：2012-03-09 00:00:00
abstract：:Intellectual disability (ID) is a highly heterogeneous disorder involving at least 600 genes, yet a genetic diagnosis remains elusive in ∼35%-40% of individuals with moderate to severe ID. Recent meta-analyses statistically analyzing de novo mutations in >7,000 individuals with neurodevelopmental disorders highlighted...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2017.02.005
更新日期：2017-04-06 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：:Encephalocraniocutaneous lipomatosis (ECCL) is a sporadic condition characterized by ocular, cutaneous, and central nervous system anomalies. Key clinical features include a well-demarcated hairless fatty nevus on the scalp, benign ocular tumors, and central nervous system lipomas. Seizures, spasticity, and intellectu...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2016.02.006
更新日期：2016-03-03 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：:Functional genomics data has the potential to increase GWAS power by identifying SNPs that have a higher prior probability of association. Here, we introduce a method that leverages polygenic functional enrichment to incorporate coding, conserved, regulatory, and LD-related genomic annotations into association analyse...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2018.11.008
更新日期：2019-01-03 00:00:00
abstract：:A convenient and reliable method for simulatneous visualization of silver staining (Ag-NOR) of the nucleolus organizers and fluorescent bandings in metaphase chromosomes is described. Studies employing this combined procedure on human chromosomes revealed that the Ag-NOR patterns may be characteristic for each chromos...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：:We report five fetuses and a child from three families who shared a phenotype comprising cerebral ventriculomegaly and echogenic kidneys with histopathological findings of congenital nephrosis. The presenting features were greatly elevated maternal serum alpha-fetoprotein (MSAFP) or amniotic fluid alpha-fetoprotein (A...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2014.11.013
更新日期：2015-01-08 00:00:00
abstract：:Transglutaminase-1 (TG1)-deficient autosomal-recessive congenital ichthyosis (ARCI) is a rare and severe genetic skin disease caused by mutations in TGM1. It is characterized by collodion babies at birth, dramatically increased transepidermal water loss (TEWL), and lifelong pronounced scaling. The disease has a tremen...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2013.08.003
更新日期：2013-10-03 00:00:00
abstract：:Exome sequencing has markedly enhanced the discovery of genes implicated in Mendelian disorders, particularly for individuals in whom a known clinical entity could not be assigned. This has led to the recognition that phenotypic heterogeneity resulting from allelic mutations occurs more commonly than previously apprec...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1016/j.ajhg.2017.12.015
更新日期：2018-02-01 00:00:00
abstract：:The frequencies of different HLA-A and -B alleles in 77 Australian patients with hemochromatosis have been compared with frequencies of HLA alleles not associated with hemochromatosis in 63 of their heterozygous relatives and with published population frequencies. As for all other populations reported, an association ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1989-07-01 00:00:00
abstract：:Limb-girdle muscular dystrophy type 2A (LGMD2A) is an autosomal recessive disorder characterized mainly by symmetrical and selective atrophy of the proximal limb muscles. It derives from defects in the human CAPN3 gene, which encodes the skeletal muscle-specific member of the calpain family. This report represents a c...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：10.1086/302426
更新日期：1999-06-01 00:00:00
abstract：:Treacher Collins syndrome (TCOF1) is an autosomal dominant disorder of craniofacial development, the features of which include conductive hearing loss and cleft palate. The TCOF1 locus has been localized to chromosome 5q32-33.2. In the present study we have used the combined techniques of genetic linkage analysis and ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1993-05-01 00:00:00
abstract：:An astonishing amount of behavioral variation is captured within the more than 350 breeds of dog recognized worldwide. Inherent in observations of dog behavior is the notion that much of what is observed is breed specific and will persist, even in the absence of training or motivation. Thus, herding, pointing, trackin...
journal_title：American journal of human genetics
pub_type： 杂志文章,评审
doi：10.1016/j.ajhg.2007.12.001
更新日期：2008-01-01 00:00:00
abstract：:Human neuroblastoma cells often are monosomic for the distal portion of 1p (1p36). We report that the deleted 1p material in cells of neuroblastoma lines is preferentially replaced by material from chromosome 17, resulting from an unbalanced 1;17 translocation. Chromosome 17 often acquires instability, followed by the...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1994-08-01 00:00:00
abstract：:The opportunity raised by recombinant DNA technology to develop a linkage marker panel that spans the human genome requires cost-efficient strategies for its optimal utilization. Questions arise as to whether it is more cost-effective to convert a dimorphic restriction enzyme marker system into a highly polymorphic sy...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1986-07-01 00:00:00
abstract：:A study was undertaken to characterize the mutation(s) responsible for Tay-Sachs disease (TSD) in a Cajun population in southwest Louisiana and to identify the origins of these mutations. Eleven of 12 infantile TSD alleles examined in six families had the beta-hexosaminidase A (Hex A) alpha-subunit exon 11 insertion m...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1992-11-01 00:00:00
abstract：:Variant late infantile neuronal ceroid lipofuscinosis (vLINCL) is an autosomal recessive progressive encephalopathy of childhood enriched in the western part of Finland, with a local incidence of 1 in 1500. We recently assigned the locus for vLINCL, CLN5, to 13q21.1-q32. In the present study, the haplotype analysis of...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1996-03-01 00:00:00
abstract：:Gene frequencies of the serum proteins third component of complement (C3) transferrin (Tf), haptoglobin (Hp), group specific component (Gc), serum cholinesterase (E1), alpha1-antitrypsin (Pi), beta2-glycoprotein I (Bg), and ceruloplasmin (Cp) in the Tajiks, Pushtoons, Hazaras, and Usbeks in Afghanistan were reported. ...
journal_title：American journal of human genetics
pub_type： 杂志文章
doi：
更新日期：1977-07-01 00:00:00
