Homozygous missense mutation in MED25 segregates with syndromic intellectual disability in a large consanguineous family.

Abstract:

BACKGROUND:Intellectual disability (ID) is a highly heterogeneous condition affecting 2% of the population worldwide. In a field study conducted in a highly inbred area of Northeastern Brazil, we investigated a consanguineous family in which seven adults presented syndromic ID. METHODS:Genome-Wide Human SNP Array 6.0 (Affymetrix) microarray was used to determine regions of homozygosity-by-descent and whole exome sequencing (WES) was performed in one affected individual using Extended Nextera Rapid-Capture Exome and Illumina HiSeq2500. RESULTS:We found two regions with an logarithm of the odds (LOD) score of 3.234: a region spanning 4.0 Mb in 19q13.32-q13.33 and a pericentromeric 20 Mb area in chromosome 2 (2p12-q11.2). WES disclosed in the critical region of chromosome 19 a homozygous variant (c.418C>T, p.Arg140Trp) in Mediator complex subunit 25 (MED25), predicted as deleterious by PolyPhen-2, Provean, Mutation Taster and Sorting Intolerant From Tolerant (SIFT). MED25 is a component of the Mediator complex, involved in regulation of transcription of nearly all RNA polymerase II-dependent genes. Deleterious mutations in MED12, MED17 and MED23 have already been associated with ID. CONCLUSIONS:These findings demonstrate that the combination of field investigation of families in highly inbred regions with modern technologies is an effective way for identifying new genes associated with ID.

journal_name

J Med Genet

authors

Figueiredo T,Melo US,Pessoa AL,Nobrega PR,Kitajima JP,Correa I,Zatz M,Kok F,Santos S

doi

10.1136/jmedgenet-2014-102793

subject

Has Abstract

pub_date

2015-02-01 00:00:00

pages

123-7

issue

2

eissn

0022-2593

issn

1468-6244

pii

jmedgenet-2014-102793

journal_volume

52

pub_type

杂志文章
  • Choanal atresia as a feature of ectrodactyly-ectodermal dysplasia-clefting (EEC) syndrome.

    abstract::We report here a father and daughter with digital abnormalities, nasolacrimal duct obstruction, and variable alopecia. The father had a cleft lip and palate and the daughter had choanal atresia. We propose they both have the EEC syndrome and show the variable expressivity of this disorder. Choanal atresia has not been...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.26.9.586

    authors: Christodoulou J,McDougall PN,Sheffield LJ

    更新日期:1989-09-01 00:00:00

  • Familial cutaneous photosensitivity and colitis with lethal outcome.

    abstract::Three sibs out of four, born to unrelated parents, developed early cutaneous photosensitivity and severe colitis. All of them died from untreatable diarrhoea. A fourth boy, whose father was different, did not have the same symptoms. The origin of this syndrome remains unclear and, in particular, no metabolic defect co...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.28.2.114

    authors: Labrune P,Huguet P,Alagille D,Odievre M

    更新日期:1991-02-01 00:00:00

  • Chromosome 1 in relation to human disease.

    abstract::Chromosome 1 is thought to represent about 6% of the total human genome and the 85 loci so far identified may constitute about 1% of the genes present on this chromosome. The existence of at least 22 loci sufficiently polymorphic in Europeans to be useful as genetic markers has allowed the construction of an elementar...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章,评审

    doi:10.1136/jmg.23.2.107

    authors: Povey S,Parrington JM

    更新日期:1986-04-01 00:00:00

  • High incidence of recurrent copy number variants in patients with isolated and syndromic Müllerian aplasia.

    abstract:BACKGROUND:Congenital malformations involving the Müllerian ducts are observed in around 5% of infertile women. Complete aplasia of the uterus, cervix, and upper vagina, also termed Müllerian aplasia or Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome, occurs with an incidence of around 1 in 4500 female births, and occur...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.2010.082412

    authors: Nik-Zainal S,Strick R,Storer M,Huang N,Rad R,Willatt L,Fitzgerald T,Martin V,Sandford R,Carter NP,Janecke AR,Renner SP,Oppelt PG,Oppelt P,Schulze C,Brucker S,Hurles M,Beckmann MW,Strissel PL,Shaw-Smith C

    更新日期:2011-03-01 00:00:00

  • Genotype-phenotype correlation in von Hippel-Lindau disease: identification of a mutation associated with VHL type 2A.

    abstract::A family with von Hippel-Lindau disease (VHL) type 2A has been shown to have a T to C missense mutation at nucleotide 547 of the VHL gene. This gives further support for the proposal to associate the 547 T to C mutation with phenotype VHL 2A. ...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.33.8.716

    authors: Chen F,Slife L,Kishida T,Mulvihill J,Tisherman SE,Zbar B

    更新日期:1996-08-01 00:00:00

  • Directly transmitted unbalanced chromosome abnormalities and euchromatic variants.

    abstract::In total, 200 families were reviewed with directly transmitted, cytogenetically visible unbalanced chromosome abnormalities (UBCAs) or euchromatic variants (EVs). Both the 130 UBCA and 70 EV families were divided into three groups depending on the presence or absence of an abnormal phenotype in parents and offspring. ...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章,评审

    doi:10.1136/jmg.2004.026955

    authors: Barber JC

    更新日期:2005-08-01 00:00:00

  • Polymorphisms in the VKORC1 gene are strongly associated with warfarin dosage requirements in patients receiving anticoagulation.

    abstract:BACKGROUND:Warfarin is a mainstay of therapy for conditions associated with an increased risk of thromboembolic events. However, the use of this common agent is fraught with complications and little is known regarding inter-individual variation in warfarin response. OBJECTIVE:We tested for association between single n...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.2005.040410

    authors: Li T,Lange LA,Li X,Susswein L,Bryant B,Malone R,Lange EM,Huang TY,Stafford DW,Evans JP

    更新日期:2006-09-01 00:00:00

  • The inheritance of migraine with aura estimated by means of structural equation modelling.

    abstract::Studies of migraine with aura (MA) have shown familial aggregation of the disorder, which cannot be explained by simple mendelian inheritance. The interest in a genetic basis for the disorder has increased after identification of three genetic loci for familial hemiplegic migraine (FHM), which is a rare subtype of MA ...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:

    authors: Ulrich V,Gervil M,Kyvik KO,Olesen J,Russell MB

    更新日期:1999-03-01 00:00:00

  • Anophthalmia with cleft palate and micrognathia: a new syndrome?

    abstract::A 5 day old male with bilateral anophthalmos, hypospadias, bifid scrotum, micrognathia, and cleft palate with normal chromosomes is described. There have been two case reports with similar clinical manifestations but associated with interstitial deletion of 14q (q22q23). We propose that either our patient represents a...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.31.12.960

    authors: Phadke SR,Sharma AK,Agarwal SS

    更新日期:1994-12-01 00:00:00

  • Use of DNA haplotype analysis in diagnosis of familial hypercholesterolaemia in 31 German families.

    abstract::In the majority of patients, familial hypercholesterolaemia (FH) is caused by different mutations affecting the well defined low density lipoprotein receptor (LDLR) gene. However, 3% of patients in Munich with a clinical diagnosis of FH have a particular mutation in the apolipoprotein B gene causing familial defective...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.28.12.865

    authors: Schuster H,Rauh G,Gerl C,Keller C,Wolfram G,Zöllner N

    更新日期:1991-12-01 00:00:00

  • A homozygous mutation of C12orf65 causes spastic paraplegia with optic atrophy and neuropathy (SPG55).

    abstract:BACKGROUND:Autosomal recessive hereditary spastic paraplegias (AR-HSP) constitute a heterogeneous group of neurodegenerative diseases involving pyramidal tracts dysfunction. The genes responsible for many types of AR-HSPs remain unknown. We attempted to identify the gene responsible for AR-HSP with optic atrophy and ne...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmedgenet-2012-101212

    authors: Shimazaki H,Takiyama Y,Ishiura H,Sakai C,Matsushima Y,Hatakeyama H,Honda J,Sakoe K,Naoi T,Namekawa M,Fukuda Y,Takahashi Y,Goto J,Tsuji S,Goto Y,Nakano I,Japan Spastic Paraplegia Research Consortium (JASPAC).

    更新日期:2012-12-01 00:00:00

  • The estimation of recurrence risks in monogenic disorders using flanking marker loci.

    abstract::A method is presented of calculating recurrence risks at a disease locus where there is information from flanking marker loci. This method uses output from the computer programme LIPED. Information from carrier detection tests and mutation at the disease locus can be taken into account in certain pedigrees. ...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.22.1.12

    authors: Winter RM

    更新日期:1985-02-01 00:00:00

  • Psoriasis is associated with pleiotropic susceptibility loci identified in type II diabetes and Crohn disease.

    abstract:BACKGROUND:Psoriasis is an immune-mediated skin disorder that is inherited as a multifactorial trait. Linkage analyses have clearly mapped a primary disease susceptibility locus to the major histocompatibility complex (MHC) region on chromosome 6p21. More recently, whole-genome association studies have identified two n...

    journal_title:Journal of medical genetics

    pub_type: 信件

    doi:10.1136/jmg.2007.053595

    authors: Wolf N,Quaranta M,Prescott NJ,Allen M,Smith R,Burden AD,Worthington J,Griffiths CE,Mathew CG,Barker JN,Capon F,Trembath RC

    更新日期:2008-02-01 00:00:00

  • Risk estimation in autosomal dominant disorders with reduced penetrance.

    abstract::The occurrence in a family of an isolated case of an autosomal dominant disorder with reduced penetrance presents a difficult problem in genetic counselling. It is shown that in such a situation the risk of recurrence in subsequent offspring is given by: (formula; see text) where P is the penetrance (0 less than P les...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.23.4.316

    authors: Emery AE

    更新日期:1986-08-01 00:00:00

  • Dominant ELOVL1 mutation causes neurological disorder with ichthyotic keratoderma, spasticity, hypomyelination and dysmorphic features.

    abstract:BACKGROUND:Ichthyosis and neurological involvement occur in relatively few known Mendelian disorders caused by mutations in genes relevant both for epidermis and neural function. OBJECTIVES:To identify the cause of a similar phenotype of ichthyotic keratoderma, spasticity, mild hypomyelination (on MRI) and dysmorphic ...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmedgenet-2017-105172

    authors: Kutkowska-Kaźmierczak A,Rydzanicz M,Chlebowski A,Kłosowska-Kosicka K,Mika A,Gruchota J,Jurkiewicz E,Kowalewski C,Pollak A,Stradomska TJ,Kmieć T,Jakubowski R,Gasperowicz P,Walczak A,Śladowski D,Jankowska-Steifer E,Kornisze

    更新日期:2018-06-01 00:00:00

  • Arachnoid cyst and chronic subdural haematoma in a child with osteogenesis imperfecta type III resulting from the substitution of glycine 1006 by alanine in the pro alpha 2(I) chain of type I procollagen.

    abstract::The features of a child with osteogenesis imperfecta type III (OI III) resulting from the heterozygous substitution of glycine 1006 by alanine in the pro alpha 2(I) chain of type I procollagen were studied. He was born at term with the clinical features of severe OI, including deep grey-blue sclerae. He had severe ost...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.33.3.193

    authors: Cole WG,Lam TP

    更新日期:1996-03-01 00:00:00

  • Absence of BRAF mutations in UV-protected mucosal melanomas.

    abstract:BACKGROUND:Mutations in BRAF have recently been identified in a significant percentage of primary and metastatic cutaneous malignant melanomas. As ultraviolet (UV) exposure may play a role in the development of cutaneous melanoma lesions with BRAF mutations, BRAF mutation frequency in melanomas arising in sites protect...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.2003.016667

    authors: Edwards RH,Ward MR,Wu H,Medina CA,Brose MS,Volpe P,Nussen-Lee S,Haupt HM,Martin AM,Herlyn M,Lessin SR,Weber BL

    更新日期:2004-04-01 00:00:00

  • Impaired HLA capping capacity of peripheral blood lymphocytes in Duchenne muscular dystrophy.

    abstract::The cap capacity in nine Duchenne muscular dystrophy (DMD) patients and in 23 healthy male subjects (14 adults and nine neonates) has been investigated by inducing capping of HLA molecules. The evaluation of capping percentages ranged in healthy controls from 44 to 61 with a mean value of 53.39 +/- 4.89, while DMD pat...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.21.3.182

    authors: Sensi A,Venturoli A,Traniello S,Lucci M,Vullo C,Conighi C,Mattiuz PL,Båricordi OR

    更新日期:1984-06-01 00:00:00

  • Identification of novel MUNC13-4 mutations in familial haemophagocytic lymphohistiocytosis and functional analysis of MUNC13-4-deficient cytotoxic T lymphocytes.

    abstract:BACKGROUND:Familial haemophagocytic lymphohistiocytosis (FHL) has an autosomal recessive mode of inheritance and consists of at least three subtypes. FHL2 subtype with perforin (PRF1) mutation accounts for 30% of all FHL cases, while FHL with MUNC13-4 mutation was recently identified and designated as FHL3 subtype. OB...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.2004.021121

    authors: Yamamoto K,Ishii E,Sako M,Ohga S,Furuno K,Suzuki N,Ueda I,Imayoshi M,Yamamoto S,Morimoto A,Takada H,Hara T,Imashuku S,Sasazuki T,Yasukawa M

    更新日期:2004-10-01 00:00:00

  • Homozygous beta+ thalassaemia owing to a mutation in the cleavage-polyadenylation sequence of the human beta globin gene.

    abstract::A mild, non-transfusion dependent, beta thalassaemia phenotype is described in a Dutch patient homozygous for a mutation in the cleavage-polyadenylation sequence of the beta globin gene. The molecular basis of the mutation, AATAAA greater than AATGAA, was determined using denaturing gradient gel electrophoresis (DGGE)...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.28.4.252

    authors: Losekoot M,Fodde R,Harteveld CL,van Heeren H,Giordano PC,Went LN,Bernini LF

    更新日期:1991-04-01 00:00:00

  • Methylenetetrahydrofolate reductase polymorphism and pre-eclampsia.

    abstract::A common missense mutation in the methylenetetrahydrofolate reductase (MTHFR) gene, a C to T substitution at nucleotide 677, is responsible for reduced MTHFR activity and associated with modestly increased plasma homocysteine concentrations. Since underlying maternal vascular disease increases the risk of pre-eclampsi...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.34.6.525

    authors: Sohda S,Arinami T,Hamada H,Yamada N,Hamaguchi H,Kubo T

    更新日期:1997-06-01 00:00:00

  • Description of a multidisciplinary model of care in a French cohort of adult patients with tuberous sclerosis complex.

    abstract:BACKGROUND:Tuberous sclerosis complex (TSC) is a rare autosomal dominant genetic disorder. Due to the various manifestations of TSC and their potential complications, a multidisciplinary care approach is recommended by consensus guidelines. OBJECTIVES:Our study aimed to give a complete description of our TSC adult coh...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmedgenet-2019-106607

    authors: Pfirmann P,Aupy J,Jambon E,Idier L,Prezelin-Reydit M,Fermis M,Devillard R,Grenier N,Combe C,Rigothier C

    更新日期:2021-01-01 00:00:00

  • Novel CCM2 missense variants abrogating the CCM1-CCM2 interaction cause cerebral cavernous malformations.

    abstract:BACKGROUND:Cerebral cavernous malformations (CCMs) are vascular malformations mostly located within the central nervous system. Most deleterious variants are loss of function mutations in one of the three CCM genes. These genes code for proteins that form a ternary cytosolic complex with CCM2 as a hub. Very few CCM2 mi...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmedgenet-2019-106401

    authors: Bergametti F,Viot G,Verny C,Brechard MP,Denier C,Labauge P,Petit P,Nouet A,Viallet F,Chaussenot A,Hervé D,Tournier-Lasserve E,Riant F

    更新日期:2020-06-01 00:00:00

  • Partial trisomy 6p and partial trisomy 22 resulting from 3:1 meiotic disjunction of maternal (6p;22q) translocation.

    abstract::A male infant, partially trisomic for a small segment of chromosomes 6 and 22 resulting from a maternal translocation, is described. Comparison of the phenotypic features of the proband with those noted in partial 6p and partial 22 trisomies revealed some common features found in both chromosome anomalies but especial...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.23.2.185

    authors: Scarbrough PR,Carroll AJ,Finley SC,Hamerick K

    更新日期:1986-04-01 00:00:00

  • Functional analysis of MSH2 unclassified variants found in suspected Lynch syndrome patients reveals pathogenicity due to attenuated mismatch repair.

    abstract:BACKGROUND:Lynch syndrome, an autosomal-dominant disorder characterised by high colorectal and endometrial cancer risks, is caused by inherited mutations in DNA mismatch repair (MMR) genes. Mutations fully abrogating gene function are unambiguously disease causing. However, missense mutations often have unknown functio...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmedgenet-2013-101987

    authors: Wielders EA,Hettinger J,Dekker R,Kets CM,Ligtenberg MJ,Mensenkamp AR,van den Ouweland AM,Prins J,Wagner A,Dinjens WN,Dubbink HJ,van Hest LP,Menko F,Hogervorst F,Verhoef S,te Riele H

    更新日期:2014-04-01 00:00:00

  • Linkage analysis of neurofibromatosis.

    abstract::Linkage analysis of neurofibromatosis was performed using genes on chromosomes 1, 8, 11, and 12. No linkage was found between NF and C-myc, AT 3, IGF-1, PTH, and gamma globin genes. Evidence for linkage was found between C-ets 1, on the long arm of chromosome 11 and NF in two families with a lod score of 1.88 at theta...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.24.9.526

    authors: Kittur S,Lubs ML,Bauer M,Chakravarti A,Kazazian H

    更新日期:1987-09-01 00:00:00

  • Haematological and obstetric aspects of antenatal diagnosis of beta-thalassaemia: experience with 200 cases.

    abstract::The results of 200 antenatal diagnoses in pregnancies at risk for homozygous beta-thalassaemia, carried out on fetal blood samples obtained by placental aspiration in the second trimester, are described. Globin chain synthesis in the fetuses was measured by means of 3H-leucine incorporation and separation of the chain...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.19.2.81

    authors: Cao A,Furbetta M,Angius A,Ximenes A,Rosatelli C,Tuveri T,Scalas MT,Falchi AM,Angioni G,Caminiti F

    更新日期:1982-04-01 00:00:00

  • Coincidence of neurofibromatosis and myotonic dystrophy in a kindred.

    abstract::Neurofibromatosis and myotonic dystrophy have occurred in ten members of a nonconsanguineous family with a high degree of concordance. The expression of neurofibromatosis is peripheral, and the expression of myotonic dystrophy has produced at least moderately severe disability. Neither disease has appeared to alter th...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.18.2.134

    authors: Ichikawa K,Crosley CJ,Culebras A,Weitkamp L

    更新日期:1981-04-01 00:00:00

  • The genetic landscape and clinical implications of vertebral anomalies in VACTERL association.

    abstract::VACTERL association is a condition comprising multisystem congenital malformations, causing severe physical disability in affected individuals. It is typically defined by the concurrence of at least three of the following component features: vertebral anomalies (V), anal atresia (A), cardiac malformations (C), tracheo...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章,评审

    doi:10.1136/jmedgenet-2015-103554

    authors: Chen Y,Liu Z,Chen J,Zuo Y,Liu S,Chen W,Liu G,Qiu G,Giampietro PF,Wu N,Wu Z

    更新日期:2016-07-01 00:00:00

  • Menkes X linked disease: heterozygous phenotype in uncloned fibroblast cultures.

    abstract::The 64Cu incorporation into uncloned fibroblast cultures from 16 Menkes disease mothers and 19 first and second degree female relatives was examined. The mean incorporation for the Menkes disease mothers (36.2 +/- 3.6 SEM) differed significantly from that of 25 normal subjects (21.7 +/- 0.9 SEM) suggesting the presenc...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.17.4.257

    authors: Horn N

    更新日期:1980-08-01 00:00:00