Novel mutation ofSACSgene in a Spanish family with autosomal recessive spastic ataxia

2005 ◽  
Vol 20 (10) ◽  
pp. 1358-1361 ◽  
Author(s):  
Chiara Criscuolo ◽  
Francesco Saccà ◽  
Giuseppe De Michele ◽  
Pietro Mancini ◽  
Onofre Combarros ◽  
...  
Keyword(s):  
Autosomal Recessive ◽  
Novel Mutation ◽  
Spastic Ataxia ◽  
Spanish Family

scholarly journals Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay (ARSACS) in a Thai Patient: The Classic Clinical Manifestations, Funduscopic Feature, and Brain Imaging Findings with a Novel Mutation in the SACS Gene

2020 ◽  
Vol 10 (0) ◽  
pp. 1 ◽  
Author(s):  
Jindapa Srikajon ◽  
Yuvadee Pitakpatapee ◽  
Chanin Limwongse ◽  
Niphon Chirapapaisan ◽  
Prachaya Srivanitchapoom
Keyword(s):  
Brain Imaging ◽  
Autosomal Recessive ◽  
Novel Mutation ◽  
Clinical Manifestations ◽  
Imaging Findings ◽  
Thai Patient ◽  
Spastic Ataxia

A novel mutation (86insA) in the alpha-sarcoglycan-gene leads to severe childhood autosomal recessive muscular dystrophy

2004 ◽  
Vol 35 (01) ◽  
Author(s):  
GP Ramelli ◽  
F Joncourt ◽  
M Gasparini ◽  
P Tonin
Keyword(s):  
Muscular Dystrophy ◽  
Autosomal Recessive ◽  
Novel Mutation

Novel mutation in ferroportin1 is associated with autosomal dominant hemochromatosis

Blood ◽  
2002 ◽  
Vol 100 (2) ◽  
pp. 692-694 ◽  
Author(s):  
Daniel F. Wallace ◽  
Palle Pedersen ◽  
Jeannette L. Dixon ◽  
Peter Stephenson ◽  
Jeffrey W. Searle ◽  
...  
Keyword(s):  
Iron Transport ◽  
Autosomal Recessive ◽  
Iron Homeostasis ◽  
Autosomal Dominant ◽  
Novel Mutation ◽  
Hfe Gene ◽  
Excess Iron ◽  
Chromosome 1Q ◽  
Australian Family ◽  
Autosomal Recessive Pattern

Abstract Hemochromatosis is a common disorder characterized by excess iron absorption and accumulation of iron in tissues. Usually hemochromatosis is inherited in an autosomal recessive pattern and is caused by mutations in the HFE gene. Less common non-HFE–related forms of hemochromatosis have been reported and are caused by mutations in the transferrin receptor 2 gene and in a gene localized to chromosome 1q. Autosomal dominant forms of hemochromatosis have also been described. Recently, 2 mutations in theferroportin1 gene, which encodes the iron transport protein ferroportin1, have been implicated in families with autosomal dominant hemochromatosis from the Netherlands and Italy. We report the finding of a novel mutation (V162del) in ferroportin1 in an Australian family with autosomal dominant hemochromatosis. We propose that this mutation disrupts the function of the ferroportin1 protein, leading to impaired iron homeostasis and iron overload.

A novel mutation in thePLCD1gene, which leads to an aberrant splicing event, underlies autosomal recessive leuconychia

2012 ◽  
Vol 167 (4) ◽  
pp. 946-949 ◽  
Author(s):  
M. Farooq ◽  
M. Kurban ◽  
O. Abbas ◽  
O. Obeidat ◽  
H. Fujikawa ◽  
...  
Keyword(s):  
Autosomal Recessive ◽  
Novel Mutation ◽  
Aberrant Splicing

scholarly journals Novel compound heterozygous mutation in SACS gene leads to a milder autosomal recessive spastic ataxia of Charlevoix‐Saguenay, ARSACS , in a Finnish family

2016 ◽  
Vol 4 (12) ◽  
pp. 1151-1156 ◽  
Author(s):  
Johanna Palmio ◽  
Mikko Kärppä ◽  
Peter Baumann ◽  
Sini Penttilä ◽  
Jukka Moilanen ◽  
...  
Keyword(s):  
Autosomal Recessive ◽  
Compound Heterozygous Mutation ◽  
Heterozygous Mutation ◽  
Compound Heterozygous ◽  
Spastic Ataxia

Unusual presentation of a severe autosomal recessive anhydrotic ectodermal dysplasia with a novel mutation in theEDARgene

2008 ◽  
Vol 146A (20) ◽  
pp. 2657-2662 ◽  
Author(s):  
Hala Mégarbané ◽  
Céline Cluzeau ◽  
Christine Bodemer ◽  
Sylvie Fraïtag ◽  
Myrna Chababi-Atallah ◽  
...  
Keyword(s):  
Autosomal Recessive ◽  
Ectodermal Dysplasia ◽  
Novel Mutation ◽  
Unusual Presentation

scholarly journals Biochemical Characterization of the GBA2 c.1780G>C Missense Mutation in Lymphoblastoid Cells from Patients with Spastic Ataxia

2018 ◽  
Vol 19 (10) ◽  
pp. 3099 ◽  
Author(s):  
Anna Malekkou ◽  
Maura Samarani ◽  
Anthi Drousiotou ◽  
Christina Votsi ◽  
Sandro Sonnino ◽  
...  
Keyword(s):  
Missense Mutation ◽  
Autosomal Recessive ◽  
Biochemical Characterization ◽  
Fold Increase ◽  
Loss Of Function ◽  
Spastic Paraplegia ◽  
Spastic Ataxia ◽  
Autosomal Recessive Cerebellar Ataxia ◽  
Compensatory Effect

The GBA2 gene encodes the non-lysosomal glucosylceramidase (NLGase), an enzyme that catalyzes the conversion of glucosylceramide (GlcCer) to ceramide and glucose. Mutations in GBA2 have been associated with the development of neurological disorders such as autosomal recessive cerebellar ataxia, hereditary spastic paraplegia, and Marinesco-Sjogren-Like Syndrome. Our group has previously identified the GBA2 c.1780G>C [p.Asp594His] missense mutation, in a Cypriot consanguineous family with spastic ataxia. In this study, we carried out a biochemical characterization of lymphoblastoid cell lines (LCLs) derived from three patients of this family. We found that the mutation strongly reduce NLGase activity both intracellularly and at the plasma membrane level. Additionally, we observed a two-fold increase of GlcCer content in LCLs derived from patients compared to controls, with the C16 lipid being the most abundant GlcCer species. Moreover, we showed that there is an apparent compensatory effect between NLGase and the lysosomal glucosylceramidase (GCase), since we found that the activity of GCase was three-fold higher in LCLs derived from patients compared to controls. We conclude that the c.1780G>C mutation results in NLGase loss of function with abolishment of the enzymatic activity and accumulation of GlcCer accompanied by a compensatory increase in GCase.

scholarly journals Genetics of Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay (ARSACS) and Role of Sacsin in Neurodegeneration

2022 ◽  
Vol 23 (1) ◽  
pp. 552
Author(s):  
Jaya Bagaria ◽  
Eva Bagyinszky ◽  
Seong Soo A. An
Keyword(s):  
Neurodegenerative Diseases ◽  
Autosomal Recessive ◽  
Genetic Mutations ◽  
Compound Heterozygous ◽  
French Canadians ◽  
Pes Cavus ◽  
Spastic Ataxia ◽  
Mitochondrial Functions ◽  
Limb Deformities

Autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) is an early-onset neurodegenerative disease that was originally discovered in the population from the Charlevoix-Saguenay-Lac-Saint-Jean (CSLSJ) region in Quebec. Although the disease progression of ARSACS may start in early childhood, cases with later onset have also been observed. Spasticity and ataxia could be common phenotypes, and retinal optic nerve hypermyelination is detected in the majority of patients. Other symptoms, such as pes cavus, ataxia and limb deformities, are also frequently observed in affected individuals. More than 200 mutations have been discovered in the SACS gene around the world. Besides French Canadians, SACS genetics have been extensively studied in Tunisia or Japan. Recently, emerging studies discovered SACS mutations in several other countries. SACS mutations could be associated with pathogenicity either in the homozygous or compound heterozygous stages. Sacsin has been confirmed to be involved in chaperon activities, controlling the microtubule balance or cell migration. Additionally, sacsin may also play a crucial role in regulating the mitochondrial functions. Through these mechanisms, it may share common mechanisms with other neurodegenerative diseases. Further studies are needed to define the exact functions of sacsin. This review introduces the genetic mutations discovered in the SACS gene and discusses its pathomechanisms and its possible involvement in other neurodegenerative diseases.

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