Novel hemizygous nonsense mutation in DRP2 is associated with inherited neuropathy
نویسندگان
چکیده
Mutations inDRP2 (OMIM #300052) encoding dystrophin-related protein 2, a 957 amino acid protein, were identified in a single patient with X-linked Charcot-Marie-Tooth (CMT) disease and are associated with familial autism. DRP2 is predominantly expressed in the brain and spinal cord and functionally interacts with periaxin (PRX, OMIM #605725), a known causative CMT gene (OMIM #614895 and #145900), in the PRX-DRP2-dystroglycan (PDG) complex. The PDG complex supports and maintains Cajal bands, which are cytoplasmic extensions that run along the length of myelinated axons and are required for establishing a proper internodal length.
منابع مشابه
Whole exome sequencing revealed a novel dystrophin-related protein-2 (DRP2) deletion in an Iranian family with symptoms of polyneuropathy
Objective(s): Charcot-Marie Tooth disease (CMT) is one of the main inherited causes of motor and sensory neuropathies with variable expressivity and age-of onset. Although more than 70 genes have been identified for CMT, more studies are needed to discover other genes involved in CMT. Introduction of whole exome sequencing (WES) to capture all the exons may help to fin...
متن کاملA Novel Nonsense mutation in PANK2 Gene in Two Patients with Pantothenate Kinase-Associated Neurodegeneration
Pantothenate kinase- associated neurodegeneration (PKAN) syndrome is a rare autosomal recessive disorder characterized by progressive extrapyramidal dysfunction and iron accumulation in the brain and axonal spheroids in the central nervous system. It has been shown that the disorder is caused by mutations in PANK2 gene which codes for a mitochondrial enzyme participating in coenzyme A biosynthe...
متن کاملAssociation of Pathogenic Missense and Nonsense Mutations in Mitochondrial COII Gene with Familial Adenomatous Polyposis (FAP)
Nuclear genetic mutations have been extensively investigated in solid tumors. However, the role of the mitochondrial genome remains uncertain. Since the metabolism of solid tumors is associated with aerobic glycolysis and high lactate production, tumors may have mitochondrial dysfunctions. Familial adenomatous polyposis (FAP) is a rare form of colorectal cancer and an autosomal dominant inheri...
متن کاملNovel CFTR Mutations in Two Iranian Families with Severe Cystic Fibrosis
Background: Cystic fibrosis (CF) is a common autosomal recessive disorder that affects many body systems and is produced by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. CF is also the most frequently inherited disorder in the West. The aim of this study was to detect the mutations in the CFTR gene in two Iranian families with CF. Methods: After DNA extractio...
متن کاملMild recurrent neuropathy in CMT1B with a novel nonsense mutation in the extracellular domain of the MPZ gene.
Clinical, electrophysiological, and neuropathological features are reported associated with a novel heterozygote point mutation in the extracellular domain of the MPZ gene, where a transversion at codon 71 in exon 3 leads to a codon stop: Glu71stop (ie GAA-->TAA). A 36 year old woman developed a mild recurrent neuropathy after intensive manual work. The motor nerve conduction velocities were sl...
متن کامل