
NEXT GENERATION SEQUENCING IDENTIFIED A NOVEL
MULTI EXON DELETION OF THE NF1 GENE IN A CHINESE
PEDIGREE WITH NEUROFIBROMATOSIS TYPE 1 Yang J, An J-X, Liu X-L, Wang Z-Q, Xie G-M, Yang X-L, Xu S-J, Feng F, Ni Y
-- Jie Yang and Jinxia An contributed equally to this study. *Corresponding Author: Dr. Yali Ni, Gansu Provincial Maternity and Child-Care Hospital, 143 Qilihe
North Street, LanZhou, Gansu Province, 730050, People’s Republic of China. Tel.: +86-0931-2231241.
E-mail: niyali@126.com page: 45
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INTRODUCTION
Neurofibromatosis type 1 (NF1) [MIM# 162200]
is a rare, autosomal dominant neurocutaneous disease.
Neuro-fibromatosis type 1 manifests with neurofibroma
(fibromatous skin tumors), café-au-lait spots and skin fold
freckling [1]. Neurofibromatosis type 1 patients usually
present with extreme inter- and intra-familial phenotypic
variability with an incidence of 1/3500 live births [1].
Germline mutations in the NF1 gene causes NF1. The NF1
gene encodes neurofibromin consisting of 2818 amino
acids, highly expressed in neurons and different types of
neuronal cells. In addition, neurofibromin activates protein
by down-regulating the function of the renin-angiotensin
system (RAS) [1].
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