A novel DYNC1H1 mutation causing spinal muscular atrophy with lower extremity predominance
نویسندگان
چکیده
Recent studies have identified mutations in the dynein heavy chain gene (DYNC1H1), which lead to 2 closely related human motor neuropathies: a dominant spinal muscular atrophy with lower extremity predominance (SMALED) and axonal Charcot-Marie-Tooth (CMT) disease.(1,2) We describe the identification of a novel mutation (p.G807S) in DYNC1H1 as the cause of SMALED.
منابع مشابه
Exome Sequencing Identifies DYNC1H1 Variant Associated With Vertebral Abnormality and Spinal Muscular Atrophy With Lower Extremity Predominance.
BACKGROUND Molecular diagnosis of the distal spinal muscular atrophies or distal hereditary motor neuropathies remains challenging because of clinical and genetic heterogeneity. Next generation sequencing offers potential for identifying de novo mutations of causative genes in isolated cases. PATIENT DESCRIPTION We present a 3.6-year-old girl with congenital scoliosis, equinovarus, and L5/S1 ...
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Mutations in the gene encoding the heavy chain subunit (DYNC1H1) of cytoplasmic dynein cause spinal muscular atrophy with lower extremity predominance, Charcot-Marie-Tooth disease and intellectual disability. We used the legs at odd angles (Loa) (DYNC1H1(F580Y)) mouse model for spinal muscular atrophy with lower extremity predominance and a combination of live-cell imaging and biochemical assay...
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OBJECTIVE To expand the clinical phenotype of autosomal dominant congenital spinal muscular atrophy with lower extremity predominance (SMA-LED) due to mutations in the dynein, cytoplasmic 1, heavy chain 1 (DYNC1H1) gene. METHODS Patients with a phenotype suggestive of a motor, non-length-dependent neuronopathy predominantly affecting the lower limbs were identified at participating neuromuscu...
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Mutations in the human DYNC1H1 gene are associated with neurological diseases. DYNC1H1 encodes the heavy chain of cytoplasmic dynein-1, a 1.4-MDa motor complex that traffics organelles, vesicles, and macromolecules toward microtubule minus ends. The effects of the DYNC1H1 mutations on dynein motility, and consequently their links to neuropathology, are not understood. Here, we address this issu...
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