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J Korean Cancer Assoc > Volume 30(4); 1998 > Article
Journal of the Korean Cancer Association 1998;30(4): 790-799.
Germline Mutations of the NF2 Gene in Korean Neurofibromatosis 2 Patient
Hee Jin Yang, Yong Jin Won, Kyu Joo Park, Hee Won Jung, Kil Soo Choi, Jae Gahb Park
1Korean Hereditary Tumor Registry, Cancer Research Institute & Cancer Research Center.
2Department of Neurosurgery, Seoul National University College of Medicine.
Neurofibromatosis 2(NF2) is an autosomal dominant disease characterized by development of bilateral acoustic neuroma and various central nervous system tumors such as meningiomas, ependymomas, and schwannomas. Recent cloning of the gene responsible for NF2, the NF2 gene, permits the presymptomatic genetic diagnosis of affected individuals by direct analysis of the gene. This paper was intended to identify germline mutations in Korean NF2 patients.
We collected blood samples from 15 clinically diagnosed NF2 patients treated at the Department of Neurosurgery, Seoul National University Hospital. Purified genomic DNA samples were analyzed for mutations of the NF2 gene by using polymerase chain reaction(PCR)-single strand conformation polymorphism(SSCP) method followed by direct DNA sequencing.
We were able to identify germline mutation of the NF2 gene in one patient. The mutation identified was 1 base pair deletion(A) at codon 318, resulting in premature stop codon due to frameshift.
Identification of the germline mutation in NF2 gene should enable us to test all individual family members at risk to determine whether or not they carry the mutant NF2 gene.
Key words: Neurofibromatosis type 2;NF2 gene;Germline mutation
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