Abstract:
:We previously identified Peg1/Mest as a novel paternally expressed gene in the developing mouse embryo. The human PEG1 gene was recently assigned to 7q32 and shown to be imprinted and paternally expressed. Therefore, PEG1 deficiency could participate in the aetiology of pre- and post-natal growth retardation associated with maternal uniparental disomy 7 in humans. We have now initiated the characterization of the Peg1 locus in order to identify and dissect cis-acting elements implicated in its imprinted monoallelic expression. The genomic structure of Peg1 as well as the DNA sequence of the 5'-end of the gene, including 2.4 kb of promoter sequences and covering the first 2 exons, have been determined. Important sequence elements, such as a CpG island spanning exon 1 and direct repeats, are identified and discussed. To address the role of epigenetic modifications in the imprinting of Peg1, a methylation analysis of the Peg1 gene is presented. Partially methylated cytosine residues in 13.5 d.p.c. embryos and undifferentiated ES cells were identified. Using embryos carrying a targetted mutation at the Peg1 locus, we show that this partial promoter methylation pattern reflects a strict parent-of-origin-specific differential methylation: the expressed paternal allele is unmethylated, whereas the silenced maternal allele is fully methylated at the CpG sites studied. That the gametes carry the epigenetic information necessary to lay down this allele-specific methylation pattern is suggested by analysis of DNA isolated from sperm and parthenogenetic embryos.
journal_name
Hum Mol Genetjournal_title
Human molecular geneticsauthors
Lefebvre L,Viville S,Barton SC,Ishino F,Surani MAdoi
10.1093/hmg/6.11.1907subject
Has Abstractpub_date
1997-10-01 00:00:00pages
1907-15issue
11eissn
0964-6906issn
1460-2083pii
dda226journal_volume
6pub_type
杂志文章abstract::Paroxysmal kinesigenic dyskinesia (PKD) is a heterogeneous movement disorder characterized by recurrent dyskinesia attacks triggered by sudden movement. PRRT2 has been identified as the first causative gene of PKD. However, it is only responsible for approximately half of affected individuals, indicating that other lo...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddx430
更新日期:2018-02-15 00:00:00
abstract::Proteolytic fragmentation of polyglutamine-expanded ataxin-3 is a concomitant and modifier of the molecular pathogenesis of Machado-Joseph disease (MJD), the most common autosomal dominant cerebellar ataxia. Calpains, a group of calcium-dependent cysteine proteases, are important mediators of ataxin-3 cleavage and imp...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddaa010
更新日期:2020-04-15 00:00:00
abstract::Genetic studies have implicated the neuronal ubiquitin C-terminal hydrolase (UCH) protein UCH-L1 in Parkinson's disease (PD) pathogenesis. Moreover, the function of UCH-L1 may be lost in the brains of PD and Alzheimer's disease patients. We have previously reported that the UCH-L1 polymorphic variant S18Y, potentially...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddr521
更新日期:2012-02-15 00:00:00
abstract::Waardenburg syndrome type 2 (WS2) is an autosomal dominant disorder characterized by a combination of pigmentary and auditory abnormalities. Approximately 20% of WS2 cases are associated with mutations in the gene encoding microphthalmia-associated transcription factor (MITF). MITF plays a critical role in the develop...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/8.8.1431
更新日期:1999-08-01 00:00:00
abstract::The gene responsible for cystic fibrosis (CF) contains 27 coding exons and more than 300 independent mutations have been identified. An efficient and optimized strategy is required to identify additional mutations and/or to screen patient samples for the presence of known mutations. We have tested several different co...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/3.5.801
更新日期:1994-05-01 00:00:00
abstract::Cerebrospinal fluid amyloid-beta 1-42 (Aβ1-42) and phosphorylated Tau at position 181 (pTau181) are biomarkers of Alzheimer's disease (AD). We performed an analysis and meta-analysis of genome-wide association study data on Aβ1-42 and pTau181 in AD dementia patients followed by independent replication. An association ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu372
更新日期:2014-12-15 00:00:00
abstract::Ataxia oculomotor apraxia type 2 (AOA2) is a rare autosomal recessive cerebellar ataxia. Recent evidence suggests that the protein defective in this syndrome, senataxin (SETX), functions in RNA processing to protect the integrity of the genome. To date, only patient-derived lymphoblastoid cells, fibroblasts and SETX k...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddv296
更新日期:2015-10-15 00:00:00
abstract::Spinal muscular atrophy (SMA) is a neuromuscular disease caused by mutations in survival motor neuron 1 (SMN1). SMN-restoring therapies have recently emerged; however, preclinical and clinical studies revealed a limited therapeutic time window and systemic aspects of the disease. This raises a fundamental question of ...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddaa146
更新日期:2020-09-29 00:00:00
abstract::The short-rib polydactyly syndromes (SRPS) encompass a radiographically and genetically heterogeneous group of skeletal ciliopathies that are characterized by a long narrow chest, short extremities, and variable occurrence of polydactyly. Radiographic abnormalities include undermineralization of the calvarium, shorten...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddw241
更新日期:2016-09-15 00:00:00
abstract::Little is known about genes regulating male puberty. Further, while many identified pubertal timing variants associate with age at menarche, a late manifestation of puberty, and body mass, little is known about these variants' relationship to pubertal initiation or tempo. To address these questions, we performed genom...
journal_title:Human molecular genetics
pub_type: 杂志文章,meta分析
doi:10.1093/hmg/ddu150
更新日期:2014-08-15 00:00:00
abstract::Steroid 11 beta-hydroxylase deficiency is the second most common cause of congenital adrenal hyperplasia, the inherited inability to synthesize cortisol. Severely affected patients carry mutations in the CYB11B1 gene that destroy enzymatic activity. Such patients have signs of androgen excess and usually have hyperten...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/6.11.1829
更新日期:1997-10-01 00:00:00
abstract::The HMG-domain containing transcription factor Sox10 is essential for neural crest (NC) development and for oligodendrocyte differentiation. Heterozygous SOX10 mutations in humans lead to corresponding defects in several NC-derived lineages and to leukodystrophies. Disease phenotypes range from Waardenburg syndrome an...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddq124
更新日期:2010-06-15 00:00:00
abstract::Huntington's disease is neurodegenerative disorder caused by a polyglutamine expansion in the N-terminal region of the huntingtin protein (N17). Here, we analysed the relative contribution of each phosphorylatable residue in the N17 region (T3, S13 and S16) towards huntingtin exon 1 (HTTex1) oligomerization, aggregati...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddx260
更新日期:2017-10-01 00:00:00
abstract::Giant axonal neuropathy (GAN) is a progressive neurodegenerative disease caused by autosomal recessive mutations in the GAN gene resulting in a loss of a ubiquitously expressed protein, gigaxonin. Gene replacement therapy is a promising strategy for treatment of the disease; however, the effectiveness and safety of gi...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu556
更新日期:2015-03-01 00:00:00
abstract::Splicing regulation is an important step of post-transcriptional gene regulation. It is a highly dynamic process orchestrated by RNA-binding proteins (RBPs). RBP dysfunction and global splicing dysregulation have been implicated in many human diseases, but the in vivo functions of most RBPs and the splicing outcome up...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddw337
更新日期:2016-12-01 00:00:00
abstract::CDH3/P-cadherin is a classical cadherin. Overexpression of which has been associated with proliferative lesions of high histological grade, decreased cell polarity and poor survival of patients with breast cancer. In vitro studies showed that it can be up-regulated by ICI 182,780, suggesting that the lack of ERalpha s...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddq134
更新日期:2010-07-01 00:00:00
abstract::NPHP4 mutations cause nephronophthisis, an autosomal recessive cystic kidney disease associated with renal fibrosis and kidney failure. The NPHP4 gene product nephrocystin-4 interacts with other nephrocystins, cytoskeletal and ciliary proteins; however, the molecular and cellular functions of nephrocystin-4 have remai...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddr214
更新日期:2011-08-15 00:00:00
abstract::Ophthalmological and molecular genetic studies were performed in a consanguineous family with individuals showing either retinitis pigmentosa (RP) or cone-rod dystrophy (CRD). Assuming pseudodominant (recessive) inheritance of allelic defects, linkage analysis positioned the causal gene at 1p21-p13 (lod score 4.22), a...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/7.3.355
更新日期:1998-03-01 00:00:00
abstract::Primary aldosteronism (PA, autonomous aldosterone production from the adrenal cortex) causes the most common form of secondary arterial hypertension (HT), which is also the most common curable form of HT. Recent studies have highlighted an important role of mutations in genes encoding potassium channels in the pathoge...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds333
更新日期:2012-11-15 00:00:00
abstract::The lifetime accumulation of low-abundance, somatic mtDNA re-arrangements (sublimons) has been proposed as a potential contributor to aging, and also to diseases such as cardiomyopathy or coronary heart disease. Tissue-specific sublimons, varying in abundance by three orders of magnitude between individuals, have rece...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/11.3.317
更新日期:2002-02-01 00:00:00
abstract::Our fundamental understanding of how several thousand diverse RNAs are recognized in the soma, sorted, packaged, transported and localized within the cell is fragmentary. The COPa and COPb proteins of the coatomer protein I (COPI) vesicle complex were reported to interact with specific RNAs and represent a candidate R...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds480
更新日期:2013-02-15 00:00:00
abstract::During human spermatogenesis, germ cells undergo dynamic changes in chromatin organization/re-packaging and in transcriptomes. In order to better understand the underlying mechanism(s), scATAC-Seq of 5376 testicular cells from 3 normal men were performed. Data were analyzed in parallel with the scRNA-Seq data of human...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddab006
更新日期:2021-01-12 00:00:00
abstract::Long range restriction site maps of 13 Mb of mouse chromosome 1 and 11 Mb of human chromosome 1 were constructed using a framework provided by a detailed mouse genetic map. Where an unambiguous gene order could be determined in both species (14 genes), the human and mouse orders were identical. In addition, the distan...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/1.8.613
更新日期:1992-11-01 00:00:00
abstract::Primary pigmented nodular adrenocortical disease (PPNAD) is associated with inactivating mutations of the PRKAR1A tumor suppressor gene that encodes the regulatory subunit R1α of the cAMP-dependent protein kinase (PKA). In human and mouse adrenocortical cells, these mutations lead to increased PKA activity, which resu...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddu265
更新日期:2014-10-15 00:00:00
abstract::Chromogranins are pro-hormone secretory proteins released from neuroendocrine cells, with effects on control of blood pressure. We conducted a genome-wide association study for plasma catestatin, the catecholamine release inhibitory peptide derived from chromogranin A (CHGA), and other CHGA- or chromogranin B (CHGB)-r...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddw380
更新日期:2017-01-01 00:00:00
abstract::To further identify novel susceptibility loci of nasopharyngeal carcinoma (NPC), we here extended our previous genome-wide association study (GWAS) by boosting statistical power with larger sample size and validating more SNPs in the ranking list based on the GWAS P-values. The discovery stage consisting of 463,250 SN...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/ddw200
更新日期:2016-08-15 00:00:00
abstract::The autosomal dominant myopathy facioscapulohumeral muscular dystrophy (FSHD) is causally related to a short Eco RI fragment detected by probe p13E-11. This remnant fragment is the result of a deletion of an integral number of tandemly arrayed 3.3 kb repeat units (D4Z4) on 4q35. Despite intensive efforts, no transcrib...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/7.8.1207
更新日期:1998-08-01 00:00:00
abstract::Prader-Willi syndrome (PWS) is caused by the loss of expression of imprinted genes in chromosome 15q11-q13. Affected individuals exhibit neonatal hypotonia, developmental delay and childhood-onset obesity. Necdin, a protein implicated in the terminal differentiation of neurons, is the only PWS candidate gene to reduce...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/9.12.1813
更新日期:2000-07-22 00:00:00
abstract::Melanomas contain high frequencies of tumorigenic cells and their tumorigenic capacity resides in several distinct subpopulations within melanoma. Since their metastatic potential is linked to their ability to recruit lymphatic vessels, we aimed at identifying lymphangiogenic subpopulations by comparative in vitro ana...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/dds171
更新日期:2012-08-01 00:00:00
abstract::In our efforts to identify new loci responsible for non-syndromic autosomal recessive forms of deafness, DFNB loci, we have pursued the analysis of large consanguineous affected families living in geographically isolated areas. Here, we report on the study of a Lebanese family comprising nine members presenting with a...
journal_title:Human molecular genetics
pub_type: 杂志文章
doi:10.1093/hmg/8.3.409
更新日期:1999-03-01 00:00:00