A new de novo mutation in a non-hot spot region at the DMD gene in a Mexican family

Luna-Angulo, A. B.; Gómez-Díaz, B.; Escobar-Cedillo, R. E.; Anaya-Segura, M. A.; Estrada Mena, Francisco Javier; López-Hernández, L. B.

A new de novo mutation in a non-hot spot region at the DMD gene in a Mexican family

Journal

Genetic Counseling

ISSN

1573-3599

Date Issued

2015

Author(s)

Luna-Angulo, A. B.

Gómez-Díaz, B.

Escobar-Cedillo, R. E.

Anaya-Segura, M. A.

López-Hernández, L. B.

Type

Resource Types::text::journal::journal article

URL

https://scripta.up.edu.mx/handle/20.500.12552/2315

Abstract

In this report we present the analysis of a sporadic case of DMD and his family. In the present case, a deletion of exons 18-47 is presented which predicts abolition of the reading frame and is located between the well-known deletion hot spots of the DMD gene. This mutation was not previously reported in the Leiden database (LOVD). Both MLPA and segregation analysis with short tandem repeat markers elucidated the status of the mother, sister and the younger brother of the proband, who were not carriers of the mutation. This case provides a description of a new pathogenic variant presented as de novo mutation in a DMD patient. Haplotype analysis and complete gene screening may improve genetic counseling in cases of germline mosaicism and de novo mutations.