A Novel Functional Missense Mutation p.T219A in Type 1 Gaucher′s Disease

Background: Gaucher's disease (GD) is an autosomal recessive disorder caused by a deficiency of acid β-glucosidase (glucocerebrosidase [GBA]) that results in the accumulation of glucocerebroside within macrophages. Many mutations have been reported to be associated with this disorder. This stud...

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Main Authors: Lin-Yu Liu, Fei Liu, Si-Chen Du, Sha-Yi Jiang, Hui-Jun Wang, Jin Zhang, Wei Wang, Duan Ma
Format: Article
Language:English
Published: Wolters Kluwer 2016-01-01
Series:Chinese Medical Journal
Subjects:
Online Access:http://www.cmj.org/article.asp?issn=0366-6999;year=2016;volume=129;issue=9;spage=1072;epage=1077;aulast=Liu
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author Lin-Yu Liu
Fei Liu
Si-Chen Du
Sha-Yi Jiang
Hui-Jun Wang
Jin Zhang
Wei Wang
Duan Ma
author_facet Lin-Yu Liu
Fei Liu
Si-Chen Du
Sha-Yi Jiang
Hui-Jun Wang
Jin Zhang
Wei Wang
Duan Ma
author_sort Lin-Yu Liu
collection DOAJ
description Background: Gaucher's disease (GD) is an autosomal recessive disorder caused by a deficiency of acid β-glucosidase (glucocerebrosidase [GBA]) that results in the accumulation of glucocerebroside within macrophages. Many mutations have been reported to be associated with this disorder. This study aimed to discover more mutations and provide data for the genetic pattern of the gene, which will help the development of quick and accurate genetic diagnostic tools for this disease. Methods: Genomic DNA was obtained from peripheral blood leukocytes of the patient and Sanger sequencing is used to sequence GBA gene. Sequence alignments of mammalian β-GBA (GCase) and three-dimensional protein structure prediction of the mutation were made. A construct of this mutant and its compound heterozygous counterpart were used to measure GCase in vitro. Results: GCase is relatively conserved at p.T219A. This novel mutation differs from its wild-type in structure. Moreover, it also causes a reduction in GCase enzyme activity. Conclusion: This novel mutation (c.655A>G, p.T219A) is a pathogenic missense mutation, which contributes to GD.
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spelling doaj.art-d2d3487ded61493b9ca4723256926b812022-12-22T01:15:11ZengWolters KluwerChinese Medical Journal0366-69992016-01-0112991072107710.4103/0366-6999.180523A Novel Functional Missense Mutation p.T219A in Type 1 Gaucher′s DiseaseLin-Yu LiuFei LiuSi-Chen DuSha-Yi JiangHui-Jun WangJin ZhangWei WangDuan MaBackground: Gaucher's disease (GD) is an autosomal recessive disorder caused by a deficiency of acid β-glucosidase (glucocerebrosidase [GBA]) that results in the accumulation of glucocerebroside within macrophages. Many mutations have been reported to be associated with this disorder. This study aimed to discover more mutations and provide data for the genetic pattern of the gene, which will help the development of quick and accurate genetic diagnostic tools for this disease. Methods: Genomic DNA was obtained from peripheral blood leukocytes of the patient and Sanger sequencing is used to sequence GBA gene. Sequence alignments of mammalian β-GBA (GCase) and three-dimensional protein structure prediction of the mutation were made. A construct of this mutant and its compound heterozygous counterpart were used to measure GCase in vitro. Results: GCase is relatively conserved at p.T219A. This novel mutation differs from its wild-type in structure. Moreover, it also causes a reduction in GCase enzyme activity. Conclusion: This novel mutation (c.655A>G, p.T219A) is a pathogenic missense mutation, which contributes to GD.http://www.cmj.org/article.asp?issn=0366-6999;year=2016;volume=129;issue=9;spage=1072;epage=1077;aulast=LiuGaucher's Disease; GCase; Genetics; Novel Missense Mutation
spellingShingle Lin-Yu Liu
Fei Liu
Si-Chen Du
Sha-Yi Jiang
Hui-Jun Wang
Jin Zhang
Wei Wang
Duan Ma
A Novel Functional Missense Mutation p.T219A in Type 1 Gaucher′s Disease
Chinese Medical Journal
Gaucher's Disease; GCase; Genetics; Novel Missense Mutation
title A Novel Functional Missense Mutation p.T219A in Type 1 Gaucher′s Disease
title_full A Novel Functional Missense Mutation p.T219A in Type 1 Gaucher′s Disease
title_fullStr A Novel Functional Missense Mutation p.T219A in Type 1 Gaucher′s Disease
title_full_unstemmed A Novel Functional Missense Mutation p.T219A in Type 1 Gaucher′s Disease
title_short A Novel Functional Missense Mutation p.T219A in Type 1 Gaucher′s Disease
title_sort novel functional missense mutation p t219a in type 1 gaucher s disease
topic Gaucher's Disease; GCase; Genetics; Novel Missense Mutation
url http://www.cmj.org/article.asp?issn=0366-6999;year=2016;volume=129;issue=9;spage=1072;epage=1077;aulast=Liu
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