A novel mutation (C271F) in the Notch3 gene in a Chinese man with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy

2007 ◽  
Vol 376 (1-2) ◽  
pp. 229-232 ◽  
Author(s):  
Kam-Ming Au ◽  
Ho-Lun Li ◽  
Bun Sheng ◽  
Tat-Chong Chow ◽  
Mo-Lung Chen ◽  
...  
Keyword(s):  
Autosomal Dominant ◽  
Novel Mutation ◽  
Notch3 Gene

Novel and Recurring NOTCH3 Mutations in Two Chinese Patients with CADASIL

2019 ◽  
Vol 19 (1) ◽  
pp. 35-42
Author(s):  
Xiangyu Chen ◽  
Sheng Deng ◽  
Hongbo Xu ◽  
Deren Hou ◽  
Pengzhi Hu ◽  
...  
Keyword(s):  
Autosomal Dominant ◽  
Novel Mutation ◽  
Clinical Manifestations ◽  
Han Chinese ◽  
Notch Receptor ◽  
Chinese Patients ◽  
Common Disease ◽  
Common Mutation ◽  
Notch3 Gene ◽  
Genetic Causes

Background: Cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an autosomal-dominant, inherited, systemic, vascular disorder primarily involving the small arteries. It is characterized by migraine, recurrent ischemic strokes, cognitive decline, and dementia. Mutations in the Notch receptor 3 gene (NOTCH3) and the HtrA serine peptidase 1 gene (HTRA1) are 2 genetic causes for CADASIL. The NOTCH3 gene, located on chromosome 19p13.12, is the most common disease-causing gene in CADASIL. Objective: To investigate genetic causes in 2 unrelated Han-Chinese patients with presentations strongly suggestive of CADASIL. Methods: Exome sequencing was performed on both patients and potential pathogenic mutations were validated by Sanger sequencing. Results: This study reports on 2 unrelated Han-Chinese patients with presentations strongly suggestive of CADASIL, identifying that NOTCH3 mutations were the genetic cause. A common mutation, c.268C>T (p.Arg90Cys), and a novel mutation, c.331G>T (p.Gly111Cys) in the NOTCH3 gene, were detected and confirmed in the patients, respectively, and were predicted to be deleterious based on bioinformation analyses. Conclusions: We identified 2 NOTCH3 mutations as likely genetic causes for CADASIL in these 2 patients. Our findings broaden the mutational spectrum of the NOTCH3 gene accountable for CADASIL. Clinical manifestations supplemented with molecular genetic analyses are critical for accurate diagnosis, the provision of genetic counseling, and the development of therapies for CADASIL.

scholarly journals Novel mutation of the NOTCH3 gene in Arabic family with CADASIL

2011 ◽  
Vol 3 (2) ◽  
pp. 6 ◽  
Author(s):  
Saeed Bohlega
Keyword(s):  
Ischemic Stroke ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Vascular Dementia ◽  
Autosomal Dominant ◽  
Novel Mutation ◽  
Adult Onset ◽  
Notch3 Gene ◽  
Epidermal Growth ◽  
Exon 11

Mutations in the NOTCH3 gene are responsible for cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), an adult onset hereditary angiopathy leading to ischemic stroke, vascular dementia and psychiatric disorders. All mutation of NOTCH3 described so far are striking stereotyped leading to the gain or loss of cystiene residue in a given epidermal growth factor (EGF), like repeat. We report an Arabic family affected with CADASIL mutation, G1790 C, in Exon 11 of the NOTCH3 gene. This is the first novel mutation reported in Arabic CADASIL patients. This finding confirms that mutations in NOTCH3 are associated with the pathogenesis of CADASIL across different ethnic background.

scholarly journals A Novel Mutation in the Notch3 Gene in an Italian Family With Cerebral Autosomal Dominant Arteriopathy With Subcortical Infarcts and Leukoencephalopathy

2001 ◽  
Vol 58 (9) ◽  
pp. 1418 ◽  
Author(s):  
Rosario L. Oliveri ◽  
Maria Muglia ◽  
Nicole De Stefano ◽  
Rosalucia Mazzei ◽  
Angelo Labate ◽  
...  
Keyword(s):  
Autosomal Dominant ◽  
Novel Mutation ◽  
Notch3 Gene ◽  
Italian Family

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.

scholarly journals A Novel COMP Mutated Allele Identified in a Chinese Family with Pseudoachondroplasia

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Bing-Bing Guo ◽  
Jie-Yuan Jin ◽  
Zhuang-Zhuang Yuan ◽  
Lei Zeng ◽  
Rong Xiang
Keyword(s):  
Extracellular Matrix ◽  
Cartilage Oligomeric Matrix Protein ◽  
Matrix Protein ◽  
Autosomal Dominant ◽  
Novel Mutation ◽  
Chinese Family ◽  
The Novel ◽  
Structure Model ◽  
Whole Exome ◽  
Nucleotide Mutation

Pseudoachondroplasia (PSACH) is an autosomal dominant skeletal dysplasia with an estimated incidence of ~1/60000 that is characterized by disproportionate short stature, brachydactyly, joint laxity, and early-onset osteoarthritis. COMP encodes the cartilage oligomeric matrix protein, which is expressed predominantly in the extracellular matrix (ECM) surrounding the cells that make up cartilage, ligaments, and tendons. Mutations in COMP are known to give rise to PSACH. In this study, we identified a novel nucleotide mutation (NM_000095.2: c.1317C>G, p.D439E) in COMP responsible for PSACH in a Chinese family by employing whole-exome sequencing (WES) and built the structure model of the mutant protein to clarify its pathogenicity. The novel mutation cosegregated with the affected individuals. Our study expands the spectrum of COMP mutations and further provides additional genetic testing information for other PSACH patients.

scholarly journals Reversible splenial lesion syndrome (RESLES) due to acute intermittent porphyria with a novel mutation in the hydroxymethylbilane synthase gene

2020 ◽  
Author(s):  
xiaoqing li ◽  
fei han ◽  
qianlong chen ◽  
tienan zhu ◽  
yongqiang zhao ◽  
...  
Keyword(s):  
Biosynthetic Pathway ◽  
Autosomal Dominant ◽  
Stop Codon ◽  
Novel Mutation ◽  
Acute Intermittent Porphyria ◽  
Porphobilinogen Deaminase ◽  
Autosomal Dominant Disorder ◽  
Splenial Lesion ◽  
Partial Deficiency ◽  
Reversible Splenial Lesion Syndrome

Abstract Background: Reversible splenial lesion syndrome (RESLES) is a clinico-radiological syndrome characterized by the presence of reversible lesions specifically involving the splenium of the corpus callosum (SCC). The cause of RESLES is unknown. However, infectious-related mild encephalitis/encephalopathy (MERS) with a reversible splenial lesion remains the most common cause of reversible splenial lesions. Acute intermittent porphyria (AIP) is an autosomal dominant disorder caused by a partial deficiency of porphobilinogen deaminase (PBGD), the third enzyme in the heme biosynthetic pathway. It can affect the autonomic, peripheral, and central nervous system. Result: In this study, we report a 20-year-old woman with AIP who presented with MRI manifestations suggestive of RESLES, she had a novel HMBS nonsense mutation, a G to A mutation in base 594, which changed tryptophan to a stop codon (W198*). Conclusion: To the best of our knowledge, this is only one published case of RELES associated with AIP.

scholarly journals Novel mutation of GJA8 in autosomal dominant congenital cataracts

2020 ◽  
Vol 8 (18) ◽  
pp. 1127-1127
Author(s):  
Ning Ding ◽  
Zhengyu Chen ◽  
Xudong Song ◽  
Xiaoyan Tang
Keyword(s):  
Autosomal Dominant ◽  
Novel Mutation ◽  
Congenital Cataracts

scholarly journals Prenatal Diagnosis of Holt–Oram Syndrome With a Novel Mutation of TBX5 Gene: A Case Report

2021 ◽  
Vol 9 ◽  
Author(s):  
Guan-nan He ◽  
Xue-yan Wang ◽  
Min Kang ◽  
Xi-min Chen ◽  
Na Xi ◽  
...  
Keyword(s):  
Septal Defect ◽  
Autosomal Dominant ◽  
Novel Mutation ◽  
Splice Donor ◽  
Autosomal Dominant Disorder ◽  
Cubitus Valgus ◽  
Case Presentation ◽  
Whole Exome ◽  
The Right ◽  
Tbx5 Gene

Background: Holt–Oram syndrome (HOS) is an autosomal dominant disorder caused by mutations of TBX5 gene.Case presentation: We report a fetus with HOS diagnosed sonographically at 23 weeks of gestation. The fetal parents are non-consanguineous. The fetus exhibited short radius and ulna, inability to supinate the hands, absence of the right thumb, and heart ventricular septal defect (VSD), while the fetal father exhibited VSD and short radius and ulna only. Fetal brother had cubitus valgus and thumb adduction, except for VSD, short radius and ulna. The pregnancy was terminated. Whole-exome sequencing (WES) revealed a novel mutation in the TBX5 (c.510+1G>A) in the fetus inherited from the father. The variant (c.510+1G>A) occurs at splice donor and may alter TBX5 gene function by impact on splicing. It was not previously reported in China.Conclusion: Our case reported a novel mutation in TBX5, which expanded the known genetic variants associated with HOS.

A novel mutation in the GTP cyclohydrolase I gene associated with a broad range of clinical presentations in a family with autosomal dominant dopa-responsive dystonia

1999 ◽  
Vol 6 (5) ◽  
pp. 605-608 ◽  
Author(s):  
Elena D. Markova ◽  
Pyotr A. Slominsky ◽  
Sergei N. Illarioshkin ◽  
Natalya I. Miklina ◽  
Svetlana N. Popova ◽  
...  
Keyword(s):  
Autosomal Dominant ◽  
Novel Mutation ◽  
Gtp Cyclohydrolase I ◽  
Gtp Cyclohydrolase ◽  
Clinical Presentations ◽  
I Gene
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