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A Novel Splicing Mutation Alters DSPP Transcription and Leads to Dentinogenesis Imperfecta Type II

Dentinogenesis imperfecta (DGI) type II is an autosomal dominant disease characterized by a serious disorders in teeth. Mutations of dentin sialophosphoprotein (DSPP) gene were revealed to be the causation of DGI type II (DGI-II). In this study, we identified a novel mutation (NG_011595.1:g.8662T>C,... Full description

Journal Title: PLoS ONE 2011, Vol.6(11)
Main Author: Zhang, Jun
Other Authors: Wang, Jiucun , Ma, Yanyun , Du, Wenqi , Zhao, Siyang , Zhang, Zuowei , Zhang, Xiaojiao , Liu, Yue , Xiao, Huasheng , Wang, Hongyan , Jin, Li , Liu, Jie
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ID: E-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0027982 ; PMCID: 3220712 ; PMID: 22125647
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recordid: pubmed_central3220712
title: A Novel Splicing Mutation Alters DSPP Transcription and Leads to Dentinogenesis Imperfecta Type II
format: Article
creator:
  • Zhang, Jun
  • Wang, Jiucun
  • Ma, Yanyun
  • Du, Wenqi
  • Zhao, Siyang
  • Zhang, Zuowei
  • Zhang, Xiaojiao
  • Liu, Yue
  • Xiao, Huasheng
  • Wang, Hongyan
  • Jin, Li
  • Liu, Jie
subjects:
  • Research Article
  • Biology
  • Medicine
ispartof: PLoS ONE, 2011, Vol.6(11)
description: Dentinogenesis imperfecta (DGI) type II is an autosomal dominant disease characterized by a serious disorders in teeth. Mutations of dentin sialophosphoprotein (DSPP) gene were revealed to be the causation of DGI type II (DGI-II). In this study, we identified a novel mutation (NG_011595.1:g.8662T>C, c.135+2T>C) lying in the splice donor site of intron 3 of DSPP gene in a Chinese Han DGI-II pedigree. It was found in all affected subjects but not in unaffected ones or other unrelated healthy controls. The function of the mutant DSPP gene, which was predicted online and subsequently confirmed by in vitro splicing analysis, was the loss of splicing of intron 3, leading to the extended length of DSPP mRNA. For the first time, the functional non-splicing of intron was revealed in a novel DSPP mutation and was considered as the causation of DGI-II. It was also indicated that splicing was of key importance to the function of DSPP and this splice donor site might be a sensitive mutation hot spot. Our findings combined with other reports would facilitate the genetic diagnosis of DGI-II, shed light on its gene therapy and help to finally conquer human diseases.
language:
source:
identifier: E-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0027982 ; PMCID: 3220712 ; PMID: 22125647
fulltext: fulltext
issn:
  • 1932-6203
  • 19326203
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titleA Novel Splicing Mutation Alters DSPP Transcription and Leads to Dentinogenesis Imperfecta Type II
creatorZhang, Jun ; Wang, Jiucun ; Ma, Yanyun ; Du, Wenqi ; Zhao, Siyang ; Zhang, Zuowei ; Zhang, Xiaojiao ; Liu, Yue ; Xiao, Huasheng ; Wang, Hongyan ; Jin, Li ; Liu, Jie
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subjectResearch Article ; Biology ; Medicine
descriptionDentinogenesis imperfecta (DGI) type II is an autosomal dominant disease characterized by a serious disorders in teeth. Mutations of dentin sialophosphoprotein (DSPP) gene were revealed to be the causation of DGI type II (DGI-II). In this study, we identified a novel mutation (NG_011595.1:g.8662T>C, c.135+2T>C) lying in the splice donor site of intron 3 of DSPP gene in a Chinese Han DGI-II pedigree. It was found in all affected subjects but not in unaffected ones or other unrelated healthy controls. The function of the mutant DSPP gene, which was predicted online and subsequently confirmed by in vitro splicing analysis, was the loss of splicing of intron 3, leading to the extended length of DSPP mRNA. For the first time, the functional non-splicing of intron was revealed in a novel DSPP mutation and was considered as the causation of DGI-II. It was also indicated that splicing was of key importance to the function of DSPP and this splice donor site might be a sensitive mutation hot spot. Our findings combined with other reports would facilitate the genetic diagnosis of DGI-II, shed light on its gene therapy and help to finally conquer human diseases.
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titleA Novel Splicing Mutation Alters DSPP Transcription and Leads to Dentinogenesis Imperfecta Type II
descriptionDentinogenesis imperfecta (DGI) type II is an autosomal dominant disease characterized by a serious disorders in teeth. Mutations of dentin sialophosphoprotein (DSPP) gene were revealed to be the causation of DGI type II (DGI-II). In this study, we identified a novel mutation (NG_011595.1:g.8662T>C, c.135+2T>C) lying in the splice donor site of intron 3 of DSPP gene in a Chinese Han DGI-II pedigree. It was found in all affected subjects but not in unaffected ones or other unrelated healthy controls. The function of the mutant DSPP gene, which was predicted online and subsequently confirmed by in vitro splicing analysis, was the loss of splicing of intron 3, leading to the extended length of DSPP mRNA. For the first time, the functional non-splicing of intron was revealed in a novel DSPP mutation and was considered as the causation of DGI-II. It was also indicated that splicing was of key importance to the function of DSPP and this splice donor site might be a sensitive mutation hot spot. Our findings combined with other reports would facilitate the genetic diagnosis of DGI-II, shed light on its gene therapy and help to finally conquer human diseases.
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abstractDentinogenesis imperfecta (DGI) type II is an autosomal dominant disease characterized by a serious disorders in teeth. Mutations of dentin sialophosphoprotein (DSPP) gene were revealed to be the causation of DGI type II (DGI-II). In this study, we identified a novel mutation (NG_011595.1:g.8662T>C, c.135+2T>C) lying in the splice donor site of intron 3 of DSPP gene in a Chinese Han DGI-II pedigree. It was found in all affected subjects but not in unaffected ones or other unrelated healthy controls. The function of the mutant DSPP gene, which was predicted online and subsequently confirmed by in vitro splicing analysis, was the loss of splicing of intron 3, leading to the extended length of DSPP mRNA. For the first time, the functional non-splicing of intron was revealed in a novel DSPP mutation and was considered as the causation of DGI-II. It was also indicated that splicing was of key importance to the function of DSPP and this splice donor site might be a sensitive mutation hot spot. Our findings combined with other reports would facilitate the genetic diagnosis of DGI-II, shed light on its gene therapy and help to finally conquer human diseases.
pubPublic Library of Science
doi10.1371/journal.pone.0027982
pmid22125647
pagese27982
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date2011-11-18