Y418C: a novel mutation in exon 9 of the glucocerebrosidase gene of a patient with Gaucher disease creates a new Bgl I site

1994 ◽  
Vol 94 (3) ◽  
Author(s):  
Renu Tuteja ◽  
Narendra Tuteja ◽  
Franco Lilliu ◽  
Bruno Bembi ◽  
Renzo Galanello ◽  
...  
2021 ◽  
Vol 22 (11) ◽  
pp. 5538
Author(s):  
Stefania Zampieri ◽  
Silvia Cattarossi ◽  
Eleonora Pavan ◽  
Antonio Barbato ◽  
Agata Fiumara ◽  
...  

Gaucher disease (GD) is an autosomal recessive lysosomal disorder due to beta-glucosidase gene (GBA) mutations. The molecular diagnosis of GD is complicated by the presence of recombinant alleles originating from a highly homologous pseudogene. Clinical exome sequencing (CES) is a rapid genetic approach for identifying disease-causing mutations. However, copy number variation and recombination events are poorly detected, and further investigations are required to avoid mis-genotyping. The aim of this work was to set-up an integrated strategy for GD patients genotyping using CES as a first-line test. Eight patients diagnosed with GD were analyzed by CES. Five patients were fully genotyped, while three were revealed to be homozygous for mutations that were not confirmed in the parents. Therefore, MLPA (multiplex ligation-dependent probe amplification) and specific long-range PCR were performed, and two recombinant alleles, one of them novel, and one large deletion were identified. Furthermore, an MLPA assay performed in one family resulted in the identification of an additional novel mutation (p.M124V) in a relative, in trans with the known p.N409S mutation. In conclusion, even though CES has become extensively used in clinical practice, our study emphasizes the importance of a comprehensive molecular strategy to provide proper GBA genotyping and genetic counseling.


2014 ◽  
Vol 59 (4) ◽  
pp. 223-228 ◽  
Author(s):  
Chitra Ankleshwaria ◽  
Mehul Mistri ◽  
Ashish Bavdekar ◽  
Mamta Muranjan ◽  
Usha Dave ◽  
...  

2017 ◽  
Vol 173 (12) ◽  
pp. 3211-3215 ◽  
Author(s):  
Ermias Hagege ◽  
Richard J. Grey ◽  
Grisel Lopez ◽  
Tamanna Roshan Lal ◽  
Ellen Sidransky ◽  
...  

2019 ◽  
Vol 12 (11) ◽  
pp. e231232
Author(s):  
Vivek Sant ◽  
Elsa Reich ◽  
Lauren Khanna ◽  
Wenqing Cao ◽  
Susan Kornacki ◽  
...  

Familial adenomatous polyposis (FAP) is an autosomal dominant syndrome associated with mutation in the adenomatous polyposis coli (APC) gene, a tumour suppressor located on chromosome 5q21. Attenuated familial adenomatous polyposis (AFAP) is a variant associated with fewer and later onset of colon polyps. AFAP-associated APC mutations have largely been found before codon 157, in exon 9 or after codon 1595. We present the case of a 44-year-old man incidentally found to have numerous gastric polyps during bariatric surgery, with innumerable polyps in the remaining part of the stomach and the entire colon, with rectal sparing, consistent with AFAP phenotype. Genetic testing demonstrated the c.7682dup (p.Ser2562Lysfs*21) variant in exon 15 of APC. This represents a previously undescribed APC mutation. This mutation likely yields end-binding protein 1 and human disc large binding protein inactivation, causing cell cycle microtubule dysregulation and tumour suppressor inactivation. Through loss of these regulatory mechanisms, this mutation is associated with AFAP phenotype. The patient was treated surgically and is doing well.


2020 ◽  
Vol 8 (3) ◽  
Author(s):  
Anna Malekkou ◽  
Ioanna Sevastou ◽  
Gavriella Mavrikiou ◽  
Theodoros Georgiou ◽  
Lluisa Vilageliu ◽  
...  

2001 ◽  
Vol 27 (2) ◽  
pp. 489-495 ◽  
Author(s):  
M.A. Torralba ◽  
J.I. Pérez-Calvo ◽  
G.M. Pastores ◽  
A. Cenarro ◽  
P. Giraldo ◽  
...  

1997 ◽  
Vol 41 ◽  
pp. 108-108
Author(s):  
Nahid Tayebi ◽  
Wim J. Kleijer ◽  
Kathryn Reissner ◽  
Jan Den Hollander ◽  
Shana Cushner ◽  
...  

2011 ◽  
Vol 412 (3-4) ◽  
pp. 365-369 ◽  
Author(s):  
Pilar Alfonso ◽  
Sandra Pampín ◽  
Beatriz García-Rodríguez ◽  
Teresa Tejedor ◽  
Carmen Domínguez ◽  
...  

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