DNAH11 compound heterozygous variants cause heterotaxy and congenital heart disease.

Heterotaxy (HTX), a condition characterized by internal organs not being arranged as expected relative to each other and to the left-right axis, is often accompanied with congenital heart disease (CHD). The purpose was to detect the pathogenic variants in a Chinese family with HTX and CHD. A non-con...

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Main Authors: Hong Xia, Xiangjun Huang, Sheng Deng, Hongbo Xu, Yan Yang, Xin Liu, Lamei Yuan, Hao Deng
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0252786
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author Hong Xia
Xiangjun Huang
Sheng Deng
Hongbo Xu
Yan Yang
Xin Liu
Lamei Yuan
Hao Deng
author_facet Hong Xia
Xiangjun Huang
Sheng Deng
Hongbo Xu
Yan Yang
Xin Liu
Lamei Yuan
Hao Deng
author_sort Hong Xia
collection DOAJ
description Heterotaxy (HTX), a condition characterized by internal organs not being arranged as expected relative to each other and to the left-right axis, is often accompanied with congenital heart disease (CHD). The purpose was to detect the pathogenic variants in a Chinese family with HTX and CHD. A non-consanguineous Han Chinese family with HTX and CHD, and 200 unrelated healthy subjects were enlisted. Exome sequencing and Sanger sequencing were applied to identify the genetic basis of the HTX family. Compound heterozygous variants, c.3426-1G>A and c.4306C>T (p.(Arg1436Trp)), in the dynein axonemal heavy chain 11 gene (DNAH11) were identified in the proband via exome sequencing and further confirmed by Sanger sequencing. Neither c.3426-1G>A nor c.4306C>T variant in the DNAH11 gene was detected in 200 healthy controls. The DNAH11 c.3426-1G>A variant was predicted as altering the acceptor splice site and most likely affecting splicing. The DNAH11 c.4306C>T variant was predicted to be damaging, which may reduce the phenotype severity. The compound heterozygous variants, c.3426-1G>A and c.4306C>T, in the DNAH11 gene might be the pathogenic alterations resulting in HTX and CHD in this family. These findings broaden the variant spectrum of the DNAH11 gene and increase knowledge used in genetic counseling for the HTX family.
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spelling doaj.art-65cd841ff16b41f79b1a85531f5412232022-12-21T20:35:10ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-01166e025278610.1371/journal.pone.0252786DNAH11 compound heterozygous variants cause heterotaxy and congenital heart disease.Hong XiaXiangjun HuangSheng DengHongbo XuYan YangXin LiuLamei YuanHao DengHeterotaxy (HTX), a condition characterized by internal organs not being arranged as expected relative to each other and to the left-right axis, is often accompanied with congenital heart disease (CHD). The purpose was to detect the pathogenic variants in a Chinese family with HTX and CHD. A non-consanguineous Han Chinese family with HTX and CHD, and 200 unrelated healthy subjects were enlisted. Exome sequencing and Sanger sequencing were applied to identify the genetic basis of the HTX family. Compound heterozygous variants, c.3426-1G>A and c.4306C>T (p.(Arg1436Trp)), in the dynein axonemal heavy chain 11 gene (DNAH11) were identified in the proband via exome sequencing and further confirmed by Sanger sequencing. Neither c.3426-1G>A nor c.4306C>T variant in the DNAH11 gene was detected in 200 healthy controls. The DNAH11 c.3426-1G>A variant was predicted as altering the acceptor splice site and most likely affecting splicing. The DNAH11 c.4306C>T variant was predicted to be damaging, which may reduce the phenotype severity. The compound heterozygous variants, c.3426-1G>A and c.4306C>T, in the DNAH11 gene might be the pathogenic alterations resulting in HTX and CHD in this family. These findings broaden the variant spectrum of the DNAH11 gene and increase knowledge used in genetic counseling for the HTX family.https://doi.org/10.1371/journal.pone.0252786
spellingShingle Hong Xia
Xiangjun Huang
Sheng Deng
Hongbo Xu
Yan Yang
Xin Liu
Lamei Yuan
Hao Deng
DNAH11 compound heterozygous variants cause heterotaxy and congenital heart disease.
PLoS ONE
title DNAH11 compound heterozygous variants cause heterotaxy and congenital heart disease.
title_full DNAH11 compound heterozygous variants cause heterotaxy and congenital heart disease.
title_fullStr DNAH11 compound heterozygous variants cause heterotaxy and congenital heart disease.
title_full_unstemmed DNAH11 compound heterozygous variants cause heterotaxy and congenital heart disease.
title_short DNAH11 compound heterozygous variants cause heterotaxy and congenital heart disease.
title_sort dnah11 compound heterozygous variants cause heterotaxy and congenital heart disease
url https://doi.org/10.1371/journal.pone.0252786
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