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Novel CLCN7 mutation identified in a Han Chinese family with autosomal dominant osteopetrosis-2.


ABSTRACT: Osteopetrosis is a heritable bone condition featuring increased bone density due to defective osteoclastic bone resorption. Exome sequencing and Sanger sequencing were conducted in Han Chinese family members, some of whom had typical osteopetrosis, and a novel missense variant c.2350A>T (p.R784W) in the chloride channel 7 gene (CLCN7) was identified. This variant cosegregated with the disorder in the family but was not observed in 800 controls. The data indicate that exome sequencing is a powerful and effective molecular diagnostic tool for detecting mutations in osteopetrosis, which is a genetically and clinically heterogeneous disorder. This discovery broadens the CLCN7 gene mutation spectrum and has important implications for clinical therapeutic regimen decisions, prognosis evaluations, and antenatal diagnoses.

SUBMITTER: Deng H 

PROVIDER: S-EPMC4955969 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Novel CLCN7 mutation identified in a Han Chinese family with autosomal dominant osteopetrosis-2.

Deng Hao H   He Dan D   Rong Pengfei P   Xu Hongbo H   Yuan Lamei L   Li Liu L   Lu Qian Q   Guo Yi Y  

Molecular pain 20160101


Osteopetrosis is a heritable bone condition featuring increased bone density due to defective osteoclastic bone resorption. Exome sequencing and Sanger sequencing were conducted in Han Chinese family members, some of whom had typical osteopetrosis, and a novel missense variant c.2350A>T (p.R784W) in the chloride channel 7 gene (CLCN7) was identified. This variant cosegregated with the disorder in the family but was not observed in 800 controls. The data indicate that exome sequencing is a powerf  ...[more]

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