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Constitutional 763.3 Kb chromosome 1q43 duplication encompassing only CHRM3 gene identified by next generation sequencing (NGS) in a child with intellectual disability.


ABSTRACT: Background:Deletion or duplication on the distal portion of the long arm of chromosome 1 result in complex and highly variable clinical phenotype including.intellectual disability and autism. Case presentation:We report on a patient with intellectual disability and a 763.3 Kb duplication on 1q43 that includes only CHRM3, which was detected by next generation sequencing (NGS). The patient presented with intellectual disability, developmental delay, autistic behavior, limited or no speech, social withdrawal, self-injurious, feeding difficulties, strabismus, short stature, hand anomalie, and no seizures, anxiety, or mood swings, and clinodactyly. Conclusions:We propose that CHRM3 is the critical gene responsible for the common characteristics in the cases with 1q43 duplication and deletion.

PROVIDER: S-EPMC6472087 | BioStudies |

REPOSITORIES: biostudies

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