Genetic Analysis of a Pedigree With Antithrombin and Prothrombin Compound Mutations and Antithrombin Heterozygotes

Background and Aims: Antithrombin (AT) is the most important physiological inhibitor in vivo, and coagulation factor II (FII) or prothrombin is a coagulation factor vital to life. The purpose of our research was to illustrate the connection between gene mutations and the corresponding deficiencies o...

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Main Authors: Haiyue Zhang, Yiling Hu, Dongli Pan, Yuehua Xv, Weifeng Shen
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-04-01
Series:Frontiers in Genetics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fgene.2022.832582/full
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author Haiyue Zhang
Yiling Hu
Dongli Pan
Yuehua Xv
Weifeng Shen
author_facet Haiyue Zhang
Yiling Hu
Dongli Pan
Yuehua Xv
Weifeng Shen
author_sort Haiyue Zhang
collection DOAJ
description Background and Aims: Antithrombin (AT) is the most important physiological inhibitor in vivo, and coagulation factor II (FII) or prothrombin is a coagulation factor vital to life. The purpose of our research was to illustrate the connection between gene mutations and the corresponding deficiencies of AT and FII.Methods: Functional and molecular analyses were performed. The possible impact of the mutation was analyzed by online bioinformatics software. ClustalX-2.1-win and PyMol/Swiss-Pdb Viewer software were used for conservative analyses and to generate molecular graphic images, respectively.Results: The proband showed a lower limb venous thrombosis and acute pulmonary embolism infarction with reduced AT activity (50%). His mother, with subcutaneous ecchymosis, had reduced activities of AT and FII, of 44 and 5%, respectively. Molecular analysis showed that both the proband and his mother carried c.964A > T (p.Lys322stop) heterozygotes in SERPINC1. The difference was that his mother carried homozygous c.494C > T (p.Thr165Met) in F2, while the proband was wild type. Bioinformatics and model analysis indicated that mutations may destroy the function and structure of AT and FII protein.Conclusion: This study identified a novel mutation of SERPINC1 and a missense mutation of F2, which may be the molecular mechanism leading to AT and FII deficiency in this family. It will help genetic diagnosis and counseling for thrombotic families.
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spelling doaj.art-38388e67eeba4b43a7400c80d46a351e2022-12-21T23:33:33ZengFrontiers Media S.A.Frontiers in Genetics1664-80212022-04-011310.3389/fgene.2022.832582832582Genetic Analysis of a Pedigree With Antithrombin and Prothrombin Compound Mutations and Antithrombin HeterozygotesHaiyue ZhangYiling HuDongli PanYuehua XvWeifeng ShenBackground and Aims: Antithrombin (AT) is the most important physiological inhibitor in vivo, and coagulation factor II (FII) or prothrombin is a coagulation factor vital to life. The purpose of our research was to illustrate the connection between gene mutations and the corresponding deficiencies of AT and FII.Methods: Functional and molecular analyses were performed. The possible impact of the mutation was analyzed by online bioinformatics software. ClustalX-2.1-win and PyMol/Swiss-Pdb Viewer software were used for conservative analyses and to generate molecular graphic images, respectively.Results: The proband showed a lower limb venous thrombosis and acute pulmonary embolism infarction with reduced AT activity (50%). His mother, with subcutaneous ecchymosis, had reduced activities of AT and FII, of 44 and 5%, respectively. Molecular analysis showed that both the proband and his mother carried c.964A > T (p.Lys322stop) heterozygotes in SERPINC1. The difference was that his mother carried homozygous c.494C > T (p.Thr165Met) in F2, while the proband was wild type. Bioinformatics and model analysis indicated that mutations may destroy the function and structure of AT and FII protein.Conclusion: This study identified a novel mutation of SERPINC1 and a missense mutation of F2, which may be the molecular mechanism leading to AT and FII deficiency in this family. It will help genetic diagnosis and counseling for thrombotic families.https://www.frontiersin.org/articles/10.3389/fgene.2022.832582/fullF2SERPINC1deep vein thrombosisacute pulmonary embolismsubcutaneous ecchymosisnovel mutation
spellingShingle Haiyue Zhang
Yiling Hu
Dongli Pan
Yuehua Xv
Weifeng Shen
Genetic Analysis of a Pedigree With Antithrombin and Prothrombin Compound Mutations and Antithrombin Heterozygotes
Frontiers in Genetics
F2
SERPINC1
deep vein thrombosis
acute pulmonary embolism
subcutaneous ecchymosis
novel mutation
title Genetic Analysis of a Pedigree With Antithrombin and Prothrombin Compound Mutations and Antithrombin Heterozygotes
title_full Genetic Analysis of a Pedigree With Antithrombin and Prothrombin Compound Mutations and Antithrombin Heterozygotes
title_fullStr Genetic Analysis of a Pedigree With Antithrombin and Prothrombin Compound Mutations and Antithrombin Heterozygotes
title_full_unstemmed Genetic Analysis of a Pedigree With Antithrombin and Prothrombin Compound Mutations and Antithrombin Heterozygotes
title_short Genetic Analysis of a Pedigree With Antithrombin and Prothrombin Compound Mutations and Antithrombin Heterozygotes
title_sort genetic analysis of a pedigree with antithrombin and prothrombin compound mutations and antithrombin heterozygotes
topic F2
SERPINC1
deep vein thrombosis
acute pulmonary embolism
subcutaneous ecchymosis
novel mutation
url https://www.frontiersin.org/articles/10.3389/fgene.2022.832582/full
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AT yilinghu geneticanalysisofapedigreewithantithrombinandprothrombincompoundmutationsandantithrombinheterozygotes
AT donglipan geneticanalysisofapedigreewithantithrombinandprothrombincompoundmutationsandantithrombinheterozygotes
AT yuehuaxv geneticanalysisofapedigreewithantithrombinandprothrombincompoundmutationsandantithrombinheterozygotes
AT weifengshen geneticanalysisofapedigreewithantithrombinandprothrombincompoundmutationsandantithrombinheterozygotes