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Biallelic BICD2 Variant is a Novel Candidate for Cohen-Like Syndrome

Heterozygous mutations in Bicaudal D2 Drosophila homolog 2 (BICD2) gene, encodes a vesicle transport protein involved in dynein-mediated movement along microtubules, are responsible for an exceedingly rare autosomal dominant spinal muscular atrophy type 2A which starts in the childhood and predomina...

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Detalles Bibliográficos
Autores principales: Caglayan, Ahmet Okay, Tuysuz, Beyhan, Gül, Ece, Alkaya, Dilek Uludag, Yalcinkaya, Cengiz, Gleeson, Joseph G., Bilguvar, Kaya, Gunel, Murat
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9420744/
https://www.ncbi.nlm.nih.gov/pubmed/35338243
http://dx.doi.org/10.1038/s10038-022-01032-1
Descripción
Sumario:Heterozygous mutations in Bicaudal D2 Drosophila homolog 2 (BICD2) gene, encodes a vesicle transport protein involved in dynein-mediated movement along microtubules, are responsible for an exceedingly rare autosomal dominant spinal muscular atrophy type 2A which starts in the childhood and predominantly effects lower extremities. Recently, a more severe form, type 2B, has also been described. Here, we present a patient born to a consanguineous union and who suffered from intellectual disability, speech delay, epilepsy, happy facial expression, truncal obesity with tappering fingers, and joint hypermobility. Whole-exome sequencing analysis revealed a rare, homozygous missense mutation (c.731T>C; p.Leu244Pro) in BICD2 gene. This finding presents the first report in the literature for homozygous BICD2 mutations and its association with a Cohen-Like syndrome. Patients presenting with Cohen-Like phenotypes should be further interrogated for mutations in BICD2.