Detection of novel mutations in the SMN Tudor domain in type ISMA patients

被引:36
作者
Cuscó, I [1 ]
Barceló, MJ [1 ]
del Río, E [1 ]
Baiget, M [1 ]
Tizzano, EF [1 ]
机构
[1] Univ Hosp Sant Pau, Dept Genet, Barcelona, Spain
关键词
D O I
10.1212/01.WNL.0000132634.48815.13
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
The authors present a complete SMN gene analysis in four type I unrelated spinal muscular atrophy patients who retained one copy of the SMN1 gene. Two intragenic point mutations were identified in exon 3 ( I116F, Q136E), affecting a very conserved region with the Tudor domain of SMN1. The remaining two patients showed no alterations in the SMN1 coding sequences although a transcription defect was detected in one of them, corroborating the existence of non-functional SMN1 genes.
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页码:146 / 149
页数:4
相关论文
共 11 条
[1]   Essential role for the tudor domain of SMN in spliceosomal U snRNP assembly:: implications for spinal muscular atrophy [J].
Buhler, D ;
Raker, V ;
Lührmann, R ;
Fischer, U .
HUMAN MOLECULAR GENETICS, 1999, 8 (13) :2351-2357
[2]   Structure and organization of the human survival motor neurone (SMN) gene [J].
Burglen, L ;
Lefebvre, S ;
Clermont, O ;
Burlet, P ;
Viollet, L ;
Cruaud, C ;
Munnich, A ;
Melki, J .
GENOMICS, 1996, 32 (03) :479-482
[3]   A genetic and phenotypic analysis iin Spanish spinal muscular atrophy patients with c.399_402del AGAG, the most frequently found subtle mutation in the SMN1 gene [J].
Cuscó, I ;
López, E ;
Soler-Botija, C ;
Barceló, MJ ;
Baiget, M ;
Tizzano, EF .
HUMAN MUTATION, 2003, 22 (02) :136-143
[4]   The promoters of the survival motor neuron gene (SMN) and its copy (SMNc) share common regulatory elements [J].
Echaniz-Laguna, A ;
Miniou, P ;
Bartholdi, D ;
Melki, J .
AMERICAN JOURNAL OF HUMAN GENETICS, 1999, 64 (05) :1365-1370
[5]   IDENTIFICATION AND CHARACTERIZATION OF A SPINAL MUSCULAR ATROPHY-DETERMINING GENE [J].
LEFEBVRE, S ;
BURGLEN, L ;
REBOULLET, S ;
CLERMONT, O ;
BURLET, P ;
VIOLLET, L ;
BENICHOU, B ;
CRUAUD, C ;
MILLASSEAU, P ;
ZEVIANI, M ;
LEPASLIER, D ;
FREZAL, J ;
COHEN, D ;
WEISSENBACH, J ;
MUNNICH, A ;
MELKI, J .
CELL, 1995, 80 (01) :155-165
[6]   Genetic study of SMA patients without homozygous SMN1 deletions:: identification of compound heterozygotes and characterisation of novel intragenic SMN1 mutations [J].
Martín, Y ;
Valero, A ;
del Castillo, E ;
Pascual, SI ;
Hernández-Chico, C .
HUMAN GENETICS, 2002, 110 (03) :257-263
[7]  
MONANI U, 1999, BIOCH BYOPHYS ACTA G, V144, P330
[8]   PCR-BASED DMA TEST TO CONFIRM CLINICAL-DIAGNOSIS OF AUTOSOMAL RECESSIVE SPINAL MUSCULAR-ATROPHY [J].
VANDERSTEEGE, G ;
GROOTSCHOLTEN, PM ;
VANDERVLIES, P ;
DRAAIJERS, TG ;
OSINGA, J ;
COBBEN, JM ;
SCHEFFER, H ;
BUYS, CHCM .
LANCET, 1995, 345 (8955) :985-986
[9]   Characterization of functional domains of the SMN protein in vivo [J].
Wang, J ;
Dreyfuss, G .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2001, 276 (48) :45387-45393
[10]  
Wirth B, 2000, HUM MUTAT, V15, P228, DOI 10.1002/(SICI)1098-1004(200003)15:3<228::AID-HUMU3>3.0.CO