Mutational analysis of the GAP-related domain of the neurofibromatosis type 1 gene in Brazilian NF1 patients

Neurofibromatosis type 1 (NF1) is a common autosomal dominant disorder caused by mutations in the NF1 gene. In the present study, a total of 55 unrelated NF1 patients were screened for mutations in the GAP-related domain/GRD (exons 20-27a) by single-strand conformation polymorphism (SSCP). Four diff...

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Main Authors: Alessandra B. Trovó, Eny M. Goloni-Bertollo, Ulises M. Mancini, Paula Rahal, Walter F. de Azevedo Jr., Eloiza H. Tajara
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2004-01-01
Series:Genetics and Molecular Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300003
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author Alessandra B. Trovó
Eny M. Goloni-Bertollo
Ulises M. Mancini
Paula Rahal
Walter F. de Azevedo Jr.
Eloiza H. Tajara
author_facet Alessandra B. Trovó
Eny M. Goloni-Bertollo
Ulises M. Mancini
Paula Rahal
Walter F. de Azevedo Jr.
Eloiza H. Tajara
author_sort Alessandra B. Trovó
collection DOAJ
description Neurofibromatosis type 1 (NF1) is a common autosomal dominant disorder caused by mutations in the NF1 gene. In the present study, a total of 55 unrelated NF1 patients were screened for mutations in the GAP-related domain/GRD (exons 20-27a) by single-strand conformation polymorphism (SSCP). Four different mutations were identified and, taken together, they comprise one nonsense substitution (Q1189X), one deletion (3525-3526delAA), one missense substitution (E1356G) and one mutation in the splice acceptor site (c.4111-1G>A). One novel polymorphism (c.4514+11C>G) and other three putative polymorphisms were also found (c.3315-27G>A, V1146I and V1317A). Genotype-phenotype correlations were investigated, but no particular association was detected.
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spelling doaj.art-17f093f36cf14cc1bd41d977bf5518d52022-12-21T18:15:52ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852004-01-0127332633010.1590/S1415-47572004000300003Mutational analysis of the GAP-related domain of the neurofibromatosis type 1 gene in Brazilian NF1 patientsAlessandra B. TrovóEny M. Goloni-BertolloUlises M. ManciniPaula RahalWalter F. de Azevedo Jr.Eloiza H. TajaraNeurofibromatosis type 1 (NF1) is a common autosomal dominant disorder caused by mutations in the NF1 gene. In the present study, a total of 55 unrelated NF1 patients were screened for mutations in the GAP-related domain/GRD (exons 20-27a) by single-strand conformation polymorphism (SSCP). Four different mutations were identified and, taken together, they comprise one nonsense substitution (Q1189X), one deletion (3525-3526delAA), one missense substitution (E1356G) and one mutation in the splice acceptor site (c.4111-1G>A). One novel polymorphism (c.4514+11C>G) and other three putative polymorphisms were also found (c.3315-27G>A, V1146I and V1317A). Genotype-phenotype correlations were investigated, but no particular association was detected.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300003gene NF1GRDneurofibromatosis type 1mutationspolymorphisms
spellingShingle Alessandra B. Trovó
Eny M. Goloni-Bertollo
Ulises M. Mancini
Paula Rahal
Walter F. de Azevedo Jr.
Eloiza H. Tajara
Mutational analysis of the GAP-related domain of the neurofibromatosis type 1 gene in Brazilian NF1 patients
Genetics and Molecular Biology
gene NF1
GRD
neurofibromatosis type 1
mutations
polymorphisms
title Mutational analysis of the GAP-related domain of the neurofibromatosis type 1 gene in Brazilian NF1 patients
title_full Mutational analysis of the GAP-related domain of the neurofibromatosis type 1 gene in Brazilian NF1 patients
title_fullStr Mutational analysis of the GAP-related domain of the neurofibromatosis type 1 gene in Brazilian NF1 patients
title_full_unstemmed Mutational analysis of the GAP-related domain of the neurofibromatosis type 1 gene in Brazilian NF1 patients
title_short Mutational analysis of the GAP-related domain of the neurofibromatosis type 1 gene in Brazilian NF1 patients
title_sort mutational analysis of the gap related domain of the neurofibromatosis type 1 gene in brazilian nf1 patients
topic gene NF1
GRD
neurofibromatosis type 1
mutations
polymorphisms
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572004000300003
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