Regulation of murine survival motor neuron (Smn) protein levels by modifying Smn exon 7 splicing.

Abstract:

:Proximal spinal muscular atrophy (SMA) is caused by mutations in the survival motor neuron gene (SMN1). In humans, two nearly identical copies of SMN exist and differ only by a single non-polymorphic C-->T nucleotide transition in exon 7. SMN1 contains a 'C' nucleotide at the +6 position of exon 7 and produces primarily full-length SMN transcripts, whereas SMN2 contains a 'T' nucleotide and produces high levels of a transcript that lacks exon 7 and a low level of full-length SMN transcripts. All SMA patients lack a functional SMN1 gene but retain at least one copy of SMN2, suggesting that the low level of full-length protein produced from SMN2 is sufficient for all cell types except motor neurons. The murine Smn gene is not duplicated or alternatively spliced. It resembles SMN1 in that the critical exon 7 +6 'C' nucleotide is conserved. We have generated Smn minigenes containing either wild-type Smn exon 7 or an altered exon 7 containing the C-->T nucleotide transition to mimic SMN2. When expressed in cultured cells or transgenic mice, the wild-type minigene produced only full-length transcripts whereas the modified minigene alternatively spliced exon 7. Furthermore, Smn exon 7 contains a critical AG-rich exonic splice enhancer sequence (ESE) analogous to the human ESE within SMN exon 7, and subtle mutations within the mESE caused a variation in Smn transcript levels. In summary, we show for the first time that the murine Smn locus can be induced to alternatively splice exon 7. These results demonstrate that SMN protein levels can be varied in the mouse by the introduction of specific mutations at the endogenous Smn locus and thereby lay the foundation for developing animals that closely 'resemble' SMA patients.

journal_name

Hum Mol Genet

journal_title

Human molecular genetics

authors

DiDonato CJ,Lorson CL,De Repentigny Y,Simard L,Chartrand C,Androphy EJ,Kothary R

doi

10.1093/hmg/10.23.2727

subject

Has Abstract

pub_date

2001-11-01 00:00:00

pages

2727-36

issue

23

eissn

0964-6906

issn

1460-2083

journal_volume

10

pub_type

杂志文章
  • TOPORS, implicated in retinal degeneration, is a cilia-centrosomal protein.

    abstract::We recently reported that mutations in the widely expressed nuclear protein TOPORS (topoisomerase I-binding arginine/serine rich) are associated with autosomal dominant retinal degeneration. However, the precise localization and a functional role of TOPORS in the retina remain unknown. Here, we demonstrate that TOPORS...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddq543

    authors: Chakarova CF,Khanna H,Shah AZ,Patil SB,Sedmak T,Murga-Zamalloa CA,Papaioannou MG,Nagel-Wolfrum K,Lopez I,Munro P,Cheetham M,Koenekoop RK,Rios RM,Matter K,Wolfrum U,Swaroop A,Bhattacharya SS

    更新日期:2011-03-01 00:00:00

  • A small-molecule Nrf1 and Nrf2 activator mitigates polyglutamine toxicity in spinal and bulbar muscular atrophy.

    abstract::Spinal and bulbar muscular atrophy (SBMA, also known as Kennedy's disease) is one of nine neurodegenerative disorders that are caused by expansion of polyglutamine-encoding CAG repeats. Intracellular accumulation of abnormal proteins in these diseases, a pathological hallmark, is associated with defects in protein hom...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddw073

    authors: Bott LC,Badders NM,Chen KL,Harmison GG,Bautista E,Shih CC,Katsuno M,Sobue G,Taylor JP,Dantuma NP,Fischbeck KH,Rinaldi C

    更新日期:2016-05-15 00:00:00

  • Copy number polymorphism and expression level variation of the human alpha-defensin genes DEFA1 and DEFA3.

    abstract::We have defined unexpectedly extensive copy number variation at the human anti-microbial alpha-defensin genes DEFA1 and DEFA3, encoding human neutrophil peptides HNP-1, HNP-2 and HNP-3. There was variation in both number and position of DEFA1/DEFA3 genes in arrays of 19 kb tandem repeats on 8p23.1, so that the DEFA1 a...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddi209

    authors: Aldred PM,Hollox EJ,Armour JA

    更新日期:2005-07-15 00:00:00

  • Systems-level analysis of human aging genes shed new light on mechanisms of aging.

    abstract::Although studies over the last decades have firmly connected a number of genes and molecular pathways to aging, the aging process as a whole still remains poorly understood. To gain novel insights into the mechanisms underlying aging, instead of considering aging genes individually, we studied their characteristics at...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddw145

    authors: Zhang Q,Nogales-Cadenas R,Lin JR,Zhang W,Cai Y,Vijg J,Zhang ZD

    更新日期:2016-07-15 00:00:00

  • Defective endocytic trafficking of NPC1 and NPC2 underlying infantile Niemann-Pick type C disease.

    abstract::Niemann-Pick type C (NPC) disease is a fatal recessively inherited lysosomal cholesterol-sphingolipidosis. Mutations in the NPC1 gene cause approximately 95% of the cases, the rest being caused by NPC2 mutations. Here the molecular basis of a severe infantile form of the disease was dissected. The level of NPC1 protei...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddg025

    authors: Blom TS,Linder MD,Snow K,Pihko H,Hess MW,Jokitalo E,Veckman V,Syvänen AC,Ikonen E

    更新日期:2003-02-01 00:00:00

  • Most genome-wide significant susceptibility loci for schizophrenia and bipolar disorder reported to date cross-traditional diagnostic boundaries.

    abstract::Recent findings from genetic epidemiology and from genome-wide association studies point strongly to a partial overlap in the genes that contribute susceptibility to schizophrenia and bipolar disorder (BD). Previous data have also directly implicated one of the best supported schizophrenia-associated loci, zinc finger...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddq471

    authors: Williams HJ,Craddock N,Russo G,Hamshere ML,Moskvina V,Dwyer S,Smith RL,Green E,Grozeva D,Holmans P,Owen MJ,O'Donovan MC

    更新日期:2011-01-15 00:00:00

  • Poly(ADP-ribose) polymerase 2 localizes to mammalian active centromeres and interacts with PARP-1, Cenpa, Cenpb and Bub3, but not Cenpc.

    abstract::Poly(ADP-ribose) polymerase 2 (PARP-2) is a newly discovered member of the PARP family. We report the association of PARP-2 with mammalian centromeres in a cell-cycle-dependent manner, accumulating at centromeres during prometaphase and metaphase, disassociating during anaphase, and disappearing from the centromeres b...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/11.19.2319

    authors: Saxena A,Wong LH,Kalitsis P,Earle E,Shaffer LG,Choo KH

    更新日期:2002-09-15 00:00:00

  • Post-translational modifications of expanded polyglutamine proteins: impact on neurotoxicity.

    abstract::Polyglutamine diseases are a family of nine neurodegenerative disorders caused by expansion in different genes of a CAG triplet repeat stretch, which encodes an elongated polyglutamine tract. This polyglutamine tract is thought to confer a toxic gain of function to the bearing proteins, which leads to late onset and p...

    journal_title:Human molecular genetics

    pub_type: 杂志文章,评审

    doi:10.1093/hmg/ddn412

    authors: Pennuto M,Palazzolo I,Poletti A

    更新日期:2009-04-15 00:00:00

  • Heterozygous inactivation of the Nf1 gene in myeloid cells enhances neointima formation via a rosuvastatin-sensitive cellular pathway.

    abstract::Mutations in the NF1 tumor suppressor gene cause Neurofibromatosis type 1 (NF1). Neurofibromin, the protein product of NF1, functions as a negative regulator of Ras activity. Some NF1 patients develop cardiovascular disease, which represents an underrecognized disease complication and contributes to excess morbidity a...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/dds502

    authors: Stansfield BK,Bessler WK,Mali R,Mund JA,Downing B,Li F,Sarchet KN,DiStasi MR,Conway SJ,Kapur R,Ingram DA Jr

    更新日期:2013-03-01 00:00:00

  • Spinal muscular atrophy: mechanisms and therapeutic strategies.

    abstract::Spinal muscular atrophy (SMA) is an autosomal recessive neurodegenerative disorder and a leading genetic cause of infantile mortality. SMA is caused by mutation or deletion of Survival Motor Neuron-1 (SMN1). The clinical features of the disease are caused by specific degeneration of alpha-motor neurons in the spinal c...

    journal_title:Human molecular genetics

    pub_type: 杂志文章,评审

    doi:10.1093/hmg/ddq147

    authors: Lorson CL,Rindt H,Shababi M

    更新日期:2010-04-15 00:00:00

  • Modification of 15q11-q13 DNA methylation imprints in unique Angelman and Prader-Willi patients.

    abstract::The clearest example of genomic imprinting in humans comes from studies of the Angelman (AS) and Prader-Willi (PWS) syndromes. Although these are clinically distinct disorders, both typically result from a loss of the same chromosomal region, 15q11-q13. AS usually results from either a maternal deletion of this region...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/2.9.1377

    authors: Glenn CC,Nicholls RD,Robinson WP,Saitoh S,Niikawa N,Schinzel A,Horsthemke B,Driscoll DJ

    更新日期:1993-09-01 00:00:00

  • Mutations in the LGI1/Epitempin gene on 10q24 cause autosomal dominant lateral temporal epilepsy.

    abstract::Autosomal dominant lateral temporal epilepsy (EPT; OMIM 600512) is a form of epilepsy characterized by partial seizures, usually preceded by auditory signs. The gene for this disorder has been mapped by linkage studies to chromosomal region 10q24. Here we show that mutations in the LGI1 gene segregate with EPT in two ...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/11.9.1119

    authors: Morante-Redolat JM,Gorostidi-Pagola A,Piquer-Sirerol S,Sáenz A,Poza JJ,Galán J,Gesk S,Sarafidou T,Mautner VF,Binelli S,Staub E,Hinzmann B,French L,Prud'homme JF,Passarelli D,Scannapieco P,Tassinari CA,Avanzini G,Martí

    更新日期:2002-05-01 00:00:00

  • Mutation analysis of the BRCA1 gene in 76 Japanese ovarian cancer patients: four germline mutations, but no evidence of somatic mutation.

    abstract::To investigate the putative role of BRCA1, a gene involved in hereditary breast and ovarian cancer, in sporadic ovarian tumors among Japanese women, we examined 76 unselected primary ovarian cancers for mutations in the coding region of BRCA1 using the single-strand conformation polymorphism technique. Although no som...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/4.10.1953

    authors: Matsushima M,Kobayashi K,Emi M,Saito H,Saito J,Suzumori K,Nakamura Y

    更新日期:1995-10-01 00:00:00

  • Mutation of the nuclear lamin gene LMNB2 in progressive myoclonus epilepsy with early ataxia.

    abstract::We studied a consanguineous Palestinian Arab family segregating an autosomal recessive progressive myoclonus epilepsy (PME) with early ataxia. PME is a rare, often fatal syndrome, initially responsive to antiepileptic drugs which over time becomes refractory and can be associated with cognitive decline. Linkage analys...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddv171

    authors: Damiano JA,Afawi Z,Bahlo M,Mauermann M,Misk A,Arsov T,Oliver KL,Dahl HH,Shearer AE,Smith RJ,Hall NE,Mahmood K,Leventer RJ,Scheffer IE,Muona M,Lehesjoki AE,Korczyn AD,Herrmann H,Berkovic SF,Hildebrand MS

    更新日期:2015-08-15 00:00:00

  • Argonaute-2-dependent rescue of a Drosophila model of FXTAS by FRAXE premutation repeat.

    abstract::Fragile X Syndrome is the most common form of hereditary mental retardation. It is caused by a large expansion of the CGG trinucleotide repeat (>200 repeats) in the 5'-untranslated region (UTR) of the FMR1 gene that leads to silencing of its transcript. Individuals with CGG repeat expansions approximately between 60 a...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddm186

    authors: Sofola OA,Jin P,Botas J,Nelson DL

    更新日期:2007-10-01 00:00:00

  • DNA methylation profiling in human Huntington's disease brain.

    abstract::Despite extensive progress in Huntington's disease (HD) research, very little is known about the association of epigenetic variation and HD pathogenesis in human brain tissues. Moreover, its contribution to the tissue-specific transcriptional regulation of the huntingtin gene (HTT), in which HTT expression levels are ...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddw076

    authors: De Souza RA,Islam SA,McEwen LM,Mathelier A,Hill A,Mah SM,Wasserman WW,Kobor MS,Leavitt BR

    更新日期:2016-05-15 00:00:00

  • Isolation, characterization and mutation analysis of PEX13-defective Chinese hamster ovary cell mutants.

    abstract::We isolated peroxisome biogenesis mutants ZP128 and ZP150 from rat PEX2 -transformed Chinese hamster ovary (CHO) cells, by the 9-(1'-pyrene)nonanol/ultraviolet method. The mutants lacked morphologically recognizable peroxisomes and showed a typical peroxisome assembly-defective phenotype such as a high sensitivity to ...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/8.9.1673

    authors: Toyama R,Mukai S,Itagaki A,Tamura S,Shimozawa N,Suzuki Y,Kondo N,Wanders RJ,Fujiki Y

    更新日期:1999-09-01 00:00:00

  • The relationship between somatic mtDNA rearrangements, human heart disease and aging.

    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

    authors: Kajander OA,Karhunen PJ,Jacobs HT

    更新日期:2002-02-01 00:00:00

  • Becker muscular dystrophy severity is linked to the structure of dystrophin.

    abstract::In-frame exon deletions of the Duchenne muscular dystrophy (DMD) gene produce internally truncated proteins that typically lead to Becker muscular dystrophy (BMD), a milder allelic disorder of DMD. We hypothesized that differences in the structure of mutant dystrophin may be responsible for the clinical heterogeneity ...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddu537

    authors: Nicolas A,Raguénès-Nicol C,Ben Yaou R,Ameziane-Le Hir S,Chéron A,Vié V,Claustres M,Leturcq F,Delalande O,Hubert JF,Tuffery-Giraud S,Giudice E,Le Rumeur E,French Network of Clinical Reference Centres for Neuromuscular Diseases (

    更新日期:2015-03-01 00:00:00

  • 17-DMAG ameliorates polyglutamine-mediated motor neuron degeneration through well-preserved proteasome function in an SBMA model mouse.

    abstract::The ubiquitin-proteasome system (UPS) is the principal protein degradation system that tags and targets short-lived proteins, as well as damaged or misfolded proteins, for destruction. In spinal and bulbar muscular atrophy (SBMA), the androgen receptor (AR), an Hsp90 client protein, is such a misfolded protein that te...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddn419

    authors: Tokui K,Adachi H,Waza M,Katsuno M,Minamiyama M,Doi H,Tanaka K,Hamazaki J,Murata S,Tanaka F,Sobue G

    更新日期:2009-03-01 00:00:00

  • Fabry disease: twenty-three mutations including sense and antisense CpG alterations and identification of a deletional hot-spot in the alpha-galactosidase A gene.

    abstract::Fabry disease, an X-linked inborn error of glycosphingolipid catabolism, results from mutations in the alpha-galactosidase A gene at Xq22.1. To determine the nature and frequency of the molecular lesions causing the classical and milder variant Fabry phenotypes, and for precise carrier detection in Fabry families, the...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/3.10.1795

    authors: Eng CM,Niehaus DJ,Enriquez AL,Burgert TS,Ludman MD,Desnick RJ

    更新日期:1994-10-01 00:00:00

  • Mutations in MAP3K1 that cause 46,XY disorders of sex development disrupt distinct structural domains in the protein.

    abstract::Missense mutations in the gene, MAP3K1, are a common cause of 46,XY gonadal dysgenesis, accounting for 15-20% of cases [Ostrer, 2014, Disorders of sex development (DSDs): an update. J. Clin. Endocrinol. Metab., 99, 1503-1509]. Functional studies demonstrated that all of these mutations cause a protein gain-of-function...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddz002

    authors: Chamberlin A,Huether R,Machado AZ,Groden M,Liu HM,Upadhyay K,O V,Gomes NL,Lerario AM,Nishi MY,Costa EMF,Mendonca B,Domenice S,Velasco J,Loke J,Ostrer H

    更新日期:2019-05-15 00:00:00

  • Methylation imprints of the imprint control region of the SNRPN-gene in human gametes and preimplantation embryos.

    abstract::Imprinting is an epigenetic mechanism leading to mono-allelic expression of imprinted genes. In order to inherit the differential epigenetic imprints from one generation to the next, these imprints have to be erased in the primordial germ cells and re-established in a sex-specific manner during gametogenesis. The exac...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddg315

    authors: Geuns E,De Rycke M,Van Steirteghem A,Liebaers I

    更新日期:2003-11-15 00:00:00

  • Confirmation of the DRB1-DQB1 loci as the major component of IDDM1 in the isolated founder population of Sardinia.

    abstract::There is considerable uncertainty and debate concerning the application of linkage disequilibrium (LD) mapping in common multifactorial diseases, including the choice of population and the density of the marker map. Previously, it has been shown that, in the large cosmopolitan population of the UK, the established typ...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/9.20.2967

    authors: Zavattari P,Lampis R,Mulargia A,Loddo M,Angius E,Todd JA,Cucca F

    更新日期:2000-12-12 00:00:00

  • Expression and imprinting of MAGEL2 suggest a role in Prader-willi syndrome and the homologous murine imprinting phenotype.

    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

    authors: Lee S,Kozlov S,Hernandez L,Chamberlain SJ,Brannan CI,Stewart CL,Wevrick R

    更新日期:2000-07-22 00:00:00

  • Worldwide distribution and broader clinical spectrum of muscle-eye-brain disease.

    abstract::Muscle-eye-brain disease (MEB), an autosomal recessive disorder prevalent in Finland, is characterized by congenital muscular dystrophy, brain malformation and ocular abnormalities. Since the MEB phenotype overlaps substantially with those of Fukuyama-type congenital muscular dystrophy (FCMD) and Walker-Warburg syndro...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddg043

    authors: Taniguchi K,Kobayashi K,Saito K,Yamanouchi H,Ohnuma A,Hayashi YK,Manya H,Jin DK,Lee M,Parano E,Falsaperla R,Pavone P,Van Coster R,Talim B,Steinbrecher A,Straub V,Nishino I,Topaloglu H,Voit T,Endo T,Toda T

    更新日期:2003-03-01 00:00:00

  • Disruption of the neurexin 1 gene is associated with schizophrenia.

    abstract::Deletions within the neurexin 1 gene (NRXN1; 2p16.3) are associated with autism and have also been reported in two families with schizophrenia. We examined NRXN1, and the closely related NRXN2 and NRXN3 genes, for copy number variants (CNVs) in 2977 schizophrenia patients and 33 746 controls from seven European popula...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddn351

    authors: Rujescu D,Ingason A,Cichon S,Pietiläinen OP,Barnes MR,Toulopoulou T,Picchioni M,Vassos E,Ettinger U,Bramon E,Murray R,Ruggeri M,Tosato S,Bonetto C,Steinberg S,Sigurdsson E,Sigmundsson T,Petursson H,Gylfason A,Olason

    更新日期:2009-03-01 00:00:00

  • The heritability and patterns of DNA methylation in normal human colorectum.

    abstract::DNA methylation (DNAm) has been linked to changes in chromatin structure, gene expression and disease. The DNAm level can be affected by genetic variation; although, how this differs by CpG dinucleotide density and genic location of the DNAm site is not well understood. Moreover, the effect of disease causing variants...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddw072

    authors: Rowlatt A,Hernández-Suárez G,Sanabria-Salas MC,Serrano-López M,Rawlik K,Hernandez-Illan E,Alenda C,Castillejo A,Soto JL,Haley CS,Tenesa A

    更新日期:2016-06-15 00:00:00

  • Fusion of the FUS and BBF2H7 genes in low grade fibromyxoid sarcoma.

    abstract::The FUS gene at 16p11 fuses with DDIT3 and ATF1 as the result of translocations with chromosome band 12q13 in myxoid liposarcoma and angiomatoid fibrous histiocytoma, respectively, and with ERG as the result of a t(16;21)(p11;q22) in acute myeloid leukemia. We here show that a t(7;16)(q33;p11) in two cases of low grad...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddg237

    authors: Storlazzi CT,Mertens F,Nascimento A,Isaksson M,Wejde J,Brosjo O,Mandahl N,Panagopoulos I

    更新日期:2003-09-15 00:00:00

  • A Drosophila model of GSS syndrome suggests defects in active zones are responsible for pathogenesis of GSS syndrome.

    abstract::We have established a Drosophila model of Gerstmann-Sträussler-Scheinker (GSS) syndrome by expressing mouse prion protein (PrP) having leucine substitution at residue 101 (MoPrP(P101L)). Flies expressing MoPrP(P101L), but not wild-type MoPrP (MoPrP(3F4)), showed severe defects in climbing ability and early death. Expr...

    journal_title:Human molecular genetics

    pub_type: 杂志文章

    doi:10.1093/hmg/ddq379

    authors: Choi JK,Jeon YC,Lee DW,Oh JM,Lee HP,Jeong BH,Carp RI,Koh YH,Kim YS

    更新日期:2010-11-15 00:00:00