Symmetric polymicrogyria and pachygyria associated with TUBB2B gene mutations
نویسندگان
چکیده
منابع مشابه
Mutations in the beta-tubulin gene TUBB2B result in asymmetrical polymicrogyria
Polymicrogyria is a relatively common but poorly understood defect of cortical development characterized by numerous small gyri and a thick disorganized cortical plate lacking normal lamination. We show an association between bilateral asymmetrical polymicrogyria and mutations in a -tubulin gene, , in four patients and a 27 GW (gestational week) fetus. de novo β TUBB2B Neuropathological examina...
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Complex cortical malformations associated with mutations in tubulin genes: TUBA1A, TUBA8, TUBB2B, TUBB3, TUBB5 and TUBG1 commonly referred to as tubulinopathies, are a heterogeneous group of conditions with a wide spectrum of clinical severity. Among the 106 patients selected as having complex cortical malformations, 45 were found to carry mutations in TUBA1A (42.5%), 18 in TUBB2B (16.9%), 11 i...
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PURPOSE Bilateral frontoparietal polymicrogyria (BFPP) has been reported in sporadic patients and in recessive pedigrees. Eleven mutations in GPR56, a gene encoding an evolutionarily dynamic G-protein-coupled receptor, have been identified in 29 patients from 18 families. The clinical features of BFPP include severe mental retardation, motor and language impairment, and epilepsy. No detailed de...
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Dominant mutations in TUBB2B have been reported in patients with polymicrogyria. We further explore the phenotype associated with mutations in TUBB2B. Twenty patients with polymicrogyria (five unilateral) were tested for mutations in TUBB2B by Sanger sequencing. We identified two novel de novo mutations, c.743C>T (p.Ala248Val) and c.1139G>T (p.Arg380Leu) in exon 4 of TUBB2B in three unrelated f...
متن کاملRecognisable cerebellar dysplasia associated with mutations in multiple tubulin genes
Mutations in alphaand beta-tubulins are increasingly recognised as a major cause of malformations of cortical development (MCD), typically lissencephaly, pachygyria and polymicrogyria; however, sequencing tubulin genes in large cohorts of MCD patients has detected tubulin mutations in only 1-13%. We identified patients with a highly-characteristic cerebellar dysplasia but without the lissenceph...
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ژورنال
عنوان ژورنال: European Journal of Human Genetics
سال: 2012
ISSN: 1018-4813,1476-5438
DOI: 10.1038/ejhg.2012.21