Identification of a novel NF1 mutation in a Chinese family affected with neurofibromatosis type I.
10.3760/cma.j.issn.1003-9406.2019.02.009
- VernacularTitle:一个Ⅰ型神经纤维瘤家系NF1基因的新突变
- Author:
Qin ZHANG
1
;
Yuting LIANG
;
Ang GAO
;
Chengying DUAN
;
Yang DING
;
Yuhong PAN
;
Longwei QIAO
;
Hong LI
Author Information
1. Center for Reproduction and Genetics, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, Jiangsu 215000, China. hongliszivf@163.com.
- Publication Type:Case Reports
- MeSH:
Asian Continental Ancestry Group;
Genes, Neurofibromatosis 1;
Humans;
Mutation;
Neurofibromatosis 1;
genetics;
Neurofibromin 1;
genetics;
Pedigree
- From:
Chinese Journal of Medical Genetics
2019;36(2):132-135
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To explore the molecular basis for a Chinese family affected with neurofibromatosis type I.
METHODS:Peripheral blood samples were collected from the proband and his parents. Potential mutations of NF1 gene were screened by PCR and Sanger sequencing. Pathogenicity of candidate mutations was analyzed using Polyphen-2 and Provean software.
RESULTS:Two mutations of the NF1 gene, including c.702G>A (synonymous mutation) and c.1733T>G (missense mutation), were discovered in the proband. Neither mutation was found in his parents and 50 healthy controls. Bioinformatics analysis indicated that the c.1733T>G mutation (p.Leu578Arg) was probably damaging. The affected codon L578 is highly conserved across various species.
CONCLUSION:The c.1733T>C mutation of the NF1 gene probably underlies the neurofibromatosis type I in this family.
