Biallelic mutations in the 3 ' exonuclease TOE1 cause pontocerebellar hypoplasia and uncover a role in snRNA processing
| Autor: | Jens Lykke-Andersen, Marie-Cécile Nassogne, Nicola Foulds, Susan Blaser, Anne Gregor, Rea M. Lardelli, Stefania Maria Bova, Ashleigh E. Schaffer, Linda Warwick, Masaaki Shiina, Eric Scott, Hülya Kayserili, Murat Gunel, Linda De Meirleir, Ahmet Okay Caglayan, Luigina Spaccini, Kazuhiro Ogata, Ari Widjaja, Naiara Akizu, Naomichi Matsumoto, David Chitayat, Henrik Thybo Christesen, Stephanie Grainger, David K. Manchester, Laura Dean Heckman, Gene W. Yeo, Sebastian Markmiller, Kazuhiro Muramatsu, Rohit Mande, Maha S. Zaki, Zinayida Schlachetzki, Umut Altunoglu, Kimberly A. Aldinger, Maria Kibaek, Joseph G. Gleeson, Justin H Davies, Mary Louise Freckmann, Eric J. Bennett, Jennifer L. Silhavy, Timothy Shaw, Esra Dikoglu, David Traver, Hüseyin Per, Eric L. Van Nostrand, Neil C. Chi, Stacey Gabriel, Enza Maria Valente, Hirotomo Saitsu, Veerle Rc Eggens, Shashank Sathe, Rasim Ozgur Rosti, Christina Fagerberg, Kaya Bilguvar, Alicia Guemez-Gamboa, Frank Baas, Basak Rosti, Damir Musaev, Isaac Marin-Valencia, William B. Dobyns |
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| Přispěvatelé: | Reproduction and Genetics, Neurogenetics, Clinical sciences, UCL - SSS/IONS/NEUR - Clinical Neuroscience, UCL - (SLuc) Service de neurologie pédiatrique, Genome Analysis, ARD - Amsterdam Reproduction and Development |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
RNA Messenger/genetics Exonucleases Male Messenger Exonucleases/genetics medicine.disease_cause Medical and Health Sciences Mice RNA Small Nuclear Neurodegenerative Diseases/genetics Nuclear protein Zebrafish Genetics Mutation Neurodegeneration Nuclear Proteins TOE1 Neurodegenerative Diseases deadenylation Biological Sciences CAF1Z SnRNA processing Female Exonuclease congenital hereditary and neonatal diseases and abnormalities Spliceosome mice Mutation/genetics snRNP Pontocerebellar hypoplasia Biology Article 03 medical and health sciences Small Nuclear snRNA Cerebellar Diseases medicine Journal Article Animals Humans RNA Messenger Spliceosomes/genetics Alleles Cerebellar Diseases/genetics urogenital system medicine.disease zebrafish Nuclear Proteins/genetics 030104 developmental biology biology.protein Spliceosomes RNA mutation RNA Small Nuclear/genetics Developmental Biology |
| Zdroj: | Nature genetics Nature Genetics, 49(3), 457-464 Nature Genetics, Vol. 49, no.3, p. 457-464 (2017) Nature genetics, 49(3), 457-464. Nature Publishing Group Lardelli, R M, Schaffer, A E, Eggens, V R C, Zaki, M S, Grainger, S, Sathe, S, Van Nostrand, E L, Schlachetzki, Z, Rosti, B, Akizu, N, Scott, E, Silhavy, J L, Heckman, L D, Rosti, R O, Dikoglu, E, Gregor, A, Guemez-Gamboa, A, Musaev, D, Mande, R, Widjaja, A, Shaw, T L, Markmiller, S, Marin-Valencia, I, Davies, J H, De Meirleir, L, Kayserili, H, Altunoglu, U, Freckmann, M L, Warwick, L, Chitayat, D, Blaser, S, Ça Layan, A O, Bilguvar, K, Per, H, Fagerberg, C, Christesen, H B T, Kibæk, M, Aldinger, K A, Manchester, D, Matsumoto, N, Muramatsu, K, Saitsu, H, Shiina, M, Ogata, K, Foulds, N, Dobyns, W B, Chi, N C, Traver, D, Spaccini, L, Bova, S M, Gabriel, S B, Gunel, M, Valente, E M, Nassogne, M C, Bennett, E J, Yeo, G W, Baas, F, Lykke-Andersen, J & Gleeson, J G 2017, ' Biallelic mutations in the 3' exonuclease TOE1 cause pontocerebellar hypoplasia and uncover a role in snRNA processing ', Nature Genetics, vol. 49, no. 3, pp. 457-464 . https://doi.org/10.1038/ng.3762 Nature genetics, vol 49, iss 3 |
| ISSN: | 1061-4036 |
| DOI: | 10.1038/ng.3762 |
| Popis: | Deadenylases are best known for degrading the poly(A) tail during mRNA decay. The deadenylase family has expanded throughout evolution and, in mammals, consists of 12 Mg2+-dependent 3’ end ribonucleases with mostly unknown substrate specificity1. Pontocerebellar hypoplasia type 7 (PCH7) is a unique recessive syndrome characterized by neurodegeneration with ambiguous genitalia2 (MIM%614969). We studied 12 human families with PCH7, uncovering biallelic, loss of function mutations in TOE1 (NC_000001.11), which encodes an unconventional deadenylase3,4. Toe1-morphant zebrafish displayed mid- and hind-brain degeneration, modeling PCH-like structural defects in vivo. Surprisingly, we found TOE1 associated with incompletely processed small nuclear (sn)RNAs of the spliceosome, which is responsible for pre-mRNA splicing. These pre-snRNAs contained 3’ genome-encoded tails often followed by post-transcriptionally added adenosines. Human cells with reduced levels of TOE1 accumulated 3’ end-extended pre-snRNAs, and immuno-isolated TOE1 complex was sufficient for 3’ end maturation of snRNAs. Our findings reveal the cause of a neurodegenerative syndrome linked to snRNA maturation and uncover a key factor involved in processing of snRNA 3’ ends. |
| Databáze: | OpenAIRE |
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