5 results match your criteria: "University of British Columbia and Children's Hospital of British Columbia[Affiliation]"

Pathogenic PHF21A variation causes PHF21A-related neurodevelopmental disorders (NDDs). Although amorphic alleles, including haploinsufficiency, have been established as a disease mechanism, increasing evidence suggests that missense variants as well as frameshift variants extending the BHC80 carboxyl terminus also cause disease. Expanding on these, we report a proposita with intellectual disability and overgrowth and a novel de novo heterozygous PHF21A splice variant (NM_001352027.

View Article and Find Full Text PDF

Tandem splice acceptors (NAGN AG) are a common mechanism of alternative splicing, but variants that are likely to generate or to disrupt tandem splice sites have rarely been reported as disease causing. We identify a pathogenic intron 23 CLTC variant (NM_004859.4:c.

View Article and Find Full Text PDF
Article Synopsis
  • PACS1-neurodevelopmental disorder (PACS1-NDD) is linked to a specific genetic variation, Arg203, which causes a type of intellectual disability due to its effect on PACS1 protein's client protein interactions.
  • Researchers hypothesize that other PACS1 variants that disrupt binding to adaptor proteins could also lead to similar intellectual disabilities.
  • A novel PACS1 variant (Ser252Phe) was identified in a mother-daughter pair, which may impair binding to an adaptor protein (GGA3), suggesting it could contribute to PACS1-NDD-like symptoms and enhancing understanding of how PACS1 variations cause intellectual disabilities.
View Article and Find Full Text PDF

Alternative use of short distance tandem sites such as NAGN AG are a common mechanism of alternative splicing; however, single nucleotide variants are rarely reported as likely to generate or to disrupt tandem splice sites. We identify a pathogenic intron 5 STK11 variant (NM_000455.4:c.

View Article and Find Full Text PDF

Monoallelic pathogenic variants in BICD2 are associated with autosomal dominant Spinal Muscular Atrophy Lower Extremity Predominant 2A and 2B (SMALED2A, SMALED2B). As part of the cellular vesicular transport, complex BICD2 facilitates the flow of constitutive secretory cargoes from the trans-Golgi network, and its dysfunction results in motor neuron loss. The reported phenotypes among patients with SMALED2A and SMALED2B range from a congenital onset disorder of respiratory insufficiency, arthrogryposis, and proximal or distal limb weakness to an adult-onset disorder of limb weakness and contractures.

View Article and Find Full Text PDF