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YEŞİL, GÖZDE

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GÖZDE
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YEŞİL
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Subject: cerebellar atrophy ×

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    PublicationOpen Access
    Monoallelic and Biallelic Variants in EMC1 Identified in Individuals with Global Developmental Delay, Hypotonia, Scoliosis, and Cerebellar Atrophy
    (2016-03-03) Harel, Tamar; YEŞİL, GÖZDE; Bayram, Yavuz; Coban-Akdemir, Zeynep; Charng, Wu-Lin; Karaca, Ender; Al Asmari, Ali; Eldomery, Mohammad K.; Hunter, Jill V.; Jhangiani, Shalini N.; Rosenfeld, Jill A.; Pehlivan, Davut; El-Hattab, Ayman W.; Saleh, Mohammed A.; Leduc, Charles A.; Muzny, Donna; Boerwinkle, Eric; Gibbs, Richard A.; Chung, Wendy K.; Yang, Yaping; Belmont, John W.; Lupski, James R.; YEŞİL, GÖZDE
    The paradigm of a single gene associated with one specific phenotype and mode of inheritance has been repeatedly challenged. Genotype-phenotype correlations can often be traced to different mutation types, localization of the variants in distinct protein domains, or the trigger of or escape from nonsense-mediated decay. Using whole-exome sequencing, we identified homozygous variants in EMC1 that segregated with a phenotype of developmental delay, hypotonia, scoliosis, and cerebellar atrophy in three families. In addition, a de novo heterozygous EMC1 variant was seen in an individual with a similar clinical and MRI imaging phenotype. EMC1 encodes a member of the endoplasmic reticulum (ER)-membrane protein complex (EMC), an evolutionarily conserved complex that has been proposed to have multiple roles in ER-associated degradation, ER-mitochondria tethering, and proper assembly of multi-pass transmembrane proteins. Perturbations of protein folding and organelle crosstalk have been implicated in neurodegenerative processes including cerebellar atrophy. We propose EMC1 as a gene in which either biallelic or monoallelic variants might lead to a syndrome including intellectual disability and preferential degeneration of the cerebellum.