Heterozygous truncation mutations of the SMC1A gene cause a severe early onset epilepsy with cluster seizures in females: Detailed phenotyping of 10 new casesTools Symonds, Joseph D., Joss, Shelagh, Metcalfe, Kay A., Somarathi, Suresh, Cruden, Jamie, Devlin, Anita M., Donaldson, Alan, DiDonato, Nataliya, Fitzpatrick, David, Kaiser, Frank J., Lampe, Anne K., Lees, Melissa M., McLellan, Ailsa, Montgomery, Tara, Mundada, Vivek, Nairn, Lesley, Sarkar, Ajoy, Schallner, Jens, Pozojevic, J.elena, Parenti, Ilaria, Tan, Jeen, Turnpenny, Peter, Whitehouse, William P. and Zuberi, Sameer M. (2017) Heterozygous truncation mutations of the SMC1A gene cause a severe early onset epilepsy with cluster seizures in females: Detailed phenotyping of 10 new cases. Epilepsia, 58 (4). pp. 565-575. ISSN 0013-9580 Full text not available from this repository.AbstractOBJECTIVE: The phenotype of seizure clustering with febrile illnesses in infancy/early childhood is well recognized. To date the only genetic epilepsy consistently associated with this phenotype is PCDH19, an X-linked disorder restricted to females, and males with mosaicism. The SMC1A gene, which encodes a structural component of the cohesin complex is also located on the X chromosome. Missense variants and small in-frame deletions of SMC1A cause approximately 5% of Cornelia de Lange Syndrome (CdLS). Recently, protein truncating mutations in SMC1A have been reported in five females, all of whom have been affected by a drug-resistant epilepsy, and severe developmental impairment. Our objective was to further delineate the phenotype of SMC1A truncation.
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