An isoform of the severe encephalopathy-related CDKL5 gene, including a novel exon with extremely high sequence conservation, is specifically expressed in brain

被引:27
作者
Fichou, Yann [2 ]
Nectoux, Juliette [2 ]
Bahi-Buisson, Nadia [2 ,3 ]
Chelly, Jamel [2 ,4 ]
Bienvenu, Thierry [1 ,2 ,4 ]
机构
[1] INSERM, Inst Cochin, Fac Med Cochin, Dept Genet & Dev Port Royal 24,U1016, F-75014 Paris, France
[2] Univ Paris 05, Inst Cochin, CNRS, UMR 8104, Paris, France
[3] Hop Necker Enfants Malad, Serv Neuropediat, Paris, France
[4] Hop Cochin, AP HP, Lab Biochim & Genet Mol, F-75674 Paris, France
关键词
alternative splicing; CDKL5; conservation; early seizures; Rett syndrome; subcellular localization; ONSET INTRACTABLE EPILEPSY; RETT-SYNDROME; INFANTILE SPASMS; MENTAL-RETARDATION; INTERSTITIAL DELETION; SEIZURE VARIANT; MUTATIONS; MECP2; IDENTIFICATION; DISORDER;
D O I
10.1038/jhg.2010.143
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
We report the identification of a novel exon, which is referred to as exon 16b, within the cyclin-dependent kinase (CDK)-like 5 (CDKL5) gene that is implicated in the X-linked infantile spasm syndrome and the early-onset seizure variant of Rett syndrome. Interestingly, it is highly conserved in species through evolution, suggesting a potential functional role, but does not display any homology with other referenced sequences. Most importantly, the transcript including this exon is specifically expressed in brain. We suggest that CDKL5 exon 16b should now be considered in the genetic screening of patients presenting with a CDKL5-related disease profile. Journal of Human Genetics (2011) 56, 52-57; doi:10.1038/jhg.2010.143; published online 2 December 2010
引用
收藏
页码:52 / 57
页数:6
相关论文
共 37 条
[1]   Rett syndrome is caused by mutations in X-linked MECP2, encoding methyl-CpG-binding protein 2 [J].
Amir, RE ;
Van den Veyver, IB ;
Wan, M ;
Tran, CQ ;
Francke, U ;
Zoghbi, HY .
NATURE GENETICS, 1999, 23 (02) :185-188
[2]   CDKL5 mutations cause infantile spasms, early onset seizures, and severe mental retardation in female patients [J].
Archer, H. L. ;
Evans, J. ;
Edwards, S. ;
Colley, J. ;
Newbury-Ecob, R. ;
O'Callaghan, F. ;
Huyton, M. ;
O'Regan, M. ;
Tolmie, J. ;
Sampson, J. ;
Clarke, A. ;
Osborne, J. .
JOURNAL OF MEDICAL GENETICS, 2006, 43 (09) :729-734
[3]   Key clinical features to identify girls with CDKL5 mutations [J].
Bahi-Buisson, Nadia ;
Nectoux, Juliette ;
Rosas-Vargas, Haydee ;
Milh, Mathieu ;
Boddaert, Nathalie ;
Girard, Benoit ;
Cances, Claude ;
Ville, Dorothee ;
Afenjar, Alexandra ;
Rio, Marlene ;
Heron, Delphine ;
Morel, Marie Ange N'Guyen ;
Arzimanoglou, Alexis ;
Philippe, Christophe ;
Jonveaux, Philippe ;
Chelly, Jamel ;
Bienvenu, Thierry .
BRAIN, 2008, 131 :2647-2661
[4]   Epileptic Encephalopathy in a Girl With an Interstitial Deletion of Xp22 Comprising Promoter and Exon 1 of the CDKL5 Gene [J].
Bahi-Buisson, Nadia ;
Girard, Benoit ;
Gautier, Agnes ;
Nectoux, Juliette ;
Fichou, Yann ;
Saillour, Yoann ;
Poirier, Karine ;
Chelly, Jamel ;
Bienvenu, Thierry .
AMERICAN JOURNAL OF MEDICAL GENETICS PART B-NEUROPSYCHIATRIC GENETICS, 2010, 153B (01) :202-207
[5]   Clinical profiles of four patients with Rett syndrome carrying a novel exon 1 mutation or genomic rearrangement in the MECP2 gene [J].
Bartholdi, D ;
Klein, A ;
Weissert, M ;
Koenig, N ;
Baumer, A ;
Boltshauser, E ;
Schinzel, A ;
Berger, W ;
Mátyás, G .
CLINICAL GENETICS, 2006, 69 (04) :319-326
[6]   Functional consequences of mutations in CDKL5, an X-linked gene involved in infantile spasms and mental retardation [J].
Bertani, Ilaria ;
Rusconi, Laura ;
Bolognese, Fabrizio ;
Forlani, Greta ;
Conca, Barbara ;
De Monte, Lucia ;
Badaracco, Gianfranco ;
Landsberger, Nicoletta ;
Kilstrup-Nielsen, Charlotte .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2006, 281 (42) :32048-32056
[7]   A patient with classic Rett syndrome with a novel mutation in MECP2 exon 1 [J].
Chunshu, Y. ;
Endoh, K. ;
Soutome, M. ;
Kawamura, R. ;
Kubota, T. .
CLINICAL GENETICS, 2006, 70 (06) :530-531
[8]   Human Splicing Finder: an online bioinformatics tool to predict splicing signals [J].
Desmet, Francois-Olivier ;
Hamroun, Dalil ;
Lalande, Marine ;
Collod-Beroud, Gwenaelle ;
Claustres, Mireille ;
Beroud, Christophe .
NUCLEIC ACIDS RESEARCH, 2009, 37 (09)
[9]   CDKL5 mutations in boys with severe encephalopathy and early-onset intractable epilepsy [J].
Elia, M. ;
Falco, M. ;
Ferri, R. ;
Spalletta, A. ;
Bottitta, M. ;
Calabrese, G. ;
Carotenuto, M. ;
Musumeci, S. A. ;
Lo Giudice, M. ;
Fichera, M. .
NEUROLOGY, 2008, 71 (13) :997-999
[10]   Alu-specific microhomology-mediated deletions in CDKL5 in females with early-onset seizure disorder [J].
Erez, Ayelet ;
Patel, Amina J. ;
Wang, Xueqing ;
Xia, Zhilian ;
Bhatt, Samarth S. ;
Craigen, William ;
Cheung, Sau Wai ;
Lewis, Richard A. ;
Fang, Ping ;
Davenport, Sandra L. H. ;
Stankiewicz, Pawel ;
Lalani, Seema R. .
NEUROGENETICS, 2009, 10 (04) :363-369