Phenotype associated with TAF2 biallelic mutations: A clinical description of four individuals and review of the literature.

Date publication

août 2021

Journal

European journal of medical genetics

Auteurs

Membres identifiés du Cancéropôle Est :
Pr FAIVRE Laurence

Tous les auteurs :
Lesieur-Sebellin M, Capri Y, Grisval M, Courtin T, Burtz A, Thevenon J, Buratti J, Lejeune E, Faivre L, Keren B

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/34474177

Résumé

Transcription factor IID is a multimeric protein complex that is essential for the initiation of transcription by RNA polymerase II. One of its critical components, the TATA-binding protein-associated factor 2, is encoded by the gene TAF2. Pathogenic variants of this gene have been shown to be responsible for the Mental retardation, autosomal recessive 40 syndrome. This syndrome is characterized by severe intellectual disability, postnatal microcephaly, pyramidal signs and thin corpus callosum. Until now, only three families have been reported separately. Here we report four individuals, from two unrelated families, who present with severe intellectual disability and global developmental delay, postnatal microcephaly, feet deformities and thin corpus callosum and who carry homozygous TAF2 missense variants detected by Exome Sequencing. Taken together, our findings and those of previously reported subjects allow us to further delineate the clinical phenotype associated with TAF2 biallelic mutations.

Mots clés

Autosomal recessive, Intellectual disability, Neurodevelopmental disorder, TAF2

Référence

Eur J Med Genet. 2021 Aug 30;64(11):104323