Comprehensive Identification of Deleterious <i>TP53</i> Missense VUS Variants Based on Their Impact on TP53 Structural Stability

TP53 plays critical roles in maintaining genome stability. Deleterious genetic variants damage the function of TP53, causing genome instability and increased cancer risk. Of the large quantity of genetic variants identified in TP53, however, many remain functionally unclassified as variants of unkno...

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Autores principales: Benjamin Tam, Siddharth Sinha, Zixin Qin, San Ming Wang
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
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VUS
Acceso en línea:https://doaj.org/article/d686216fec31441fbecea20b6d37fecd
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spelling oai:doaj.org-article:d686216fec31441fbecea20b6d37fecd2021-11-11T16:49:26ZComprehensive Identification of Deleterious <i>TP53</i> Missense VUS Variants Based on Their Impact on TP53 Structural Stability10.3390/ijms2221113451422-00671661-6596https://doaj.org/article/d686216fec31441fbecea20b6d37fecd2021-10-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/21/11345https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067TP53 plays critical roles in maintaining genome stability. Deleterious genetic variants damage the function of TP53, causing genome instability and increased cancer risk. Of the large quantity of genetic variants identified in TP53, however, many remain functionally unclassified as variants of unknown significance (VUS) due to the lack of evidence. This is reflected by the presence of 749 (42%) VUS of the 1785 germline variants collected in the ClinVar database. In this study, we addressed the deleteriousness of TP53 missense VUS. Utilizing the protein structure-based Ramachandran Plot-Molecular Dynamics Simulation (RPMDS) method that we developed, we measured the effects of missense VUS on TP53 structural stability. Of the 340 missense VUS tested, we observed deleterious evidence for 193 VUS, as reflected by the TP53 structural changes caused by the VUS-substituted residues. We compared the results from RPMDS with those from other in silico methods and observed higher specificity of RPMDS in classification of TP53 missense VUS than these methods. Data from our current study address a long-standing challenge in classifying the missense VUS in TP53, one of the most important tumor suppressor genes.Benjamin TamSiddharth SinhaZixin QinSan Ming WangMDPI AGarticleTP53VUSdeleteriousmolecular dynamic simulationsramachandran plotBiology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 11345, p 11345 (2021)
institution DOAJ
collection DOAJ
language EN
topic TP53
VUS
deleterious
molecular dynamic simulations
ramachandran plot
Biology (General)
QH301-705.5
Chemistry
QD1-999
spellingShingle TP53
VUS
deleterious
molecular dynamic simulations
ramachandran plot
Biology (General)
QH301-705.5
Chemistry
QD1-999
Benjamin Tam
Siddharth Sinha
Zixin Qin
San Ming Wang
Comprehensive Identification of Deleterious <i>TP53</i> Missense VUS Variants Based on Their Impact on TP53 Structural Stability
description TP53 plays critical roles in maintaining genome stability. Deleterious genetic variants damage the function of TP53, causing genome instability and increased cancer risk. Of the large quantity of genetic variants identified in TP53, however, many remain functionally unclassified as variants of unknown significance (VUS) due to the lack of evidence. This is reflected by the presence of 749 (42%) VUS of the 1785 germline variants collected in the ClinVar database. In this study, we addressed the deleteriousness of TP53 missense VUS. Utilizing the protein structure-based Ramachandran Plot-Molecular Dynamics Simulation (RPMDS) method that we developed, we measured the effects of missense VUS on TP53 structural stability. Of the 340 missense VUS tested, we observed deleterious evidence for 193 VUS, as reflected by the TP53 structural changes caused by the VUS-substituted residues. We compared the results from RPMDS with those from other in silico methods and observed higher specificity of RPMDS in classification of TP53 missense VUS than these methods. Data from our current study address a long-standing challenge in classifying the missense VUS in TP53, one of the most important tumor suppressor genes.
format article
author Benjamin Tam
Siddharth Sinha
Zixin Qin
San Ming Wang
author_facet Benjamin Tam
Siddharth Sinha
Zixin Qin
San Ming Wang
author_sort Benjamin Tam
title Comprehensive Identification of Deleterious <i>TP53</i> Missense VUS Variants Based on Their Impact on TP53 Structural Stability
title_short Comprehensive Identification of Deleterious <i>TP53</i> Missense VUS Variants Based on Their Impact on TP53 Structural Stability
title_full Comprehensive Identification of Deleterious <i>TP53</i> Missense VUS Variants Based on Their Impact on TP53 Structural Stability
title_fullStr Comprehensive Identification of Deleterious <i>TP53</i> Missense VUS Variants Based on Their Impact on TP53 Structural Stability
title_full_unstemmed Comprehensive Identification of Deleterious <i>TP53</i> Missense VUS Variants Based on Their Impact on TP53 Structural Stability
title_sort comprehensive identification of deleterious <i>tp53</i> missense vus variants based on their impact on tp53 structural stability
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/d686216fec31441fbecea20b6d37fecd
work_keys_str_mv AT benjamintam comprehensiveidentificationofdeleteriousitp53imissensevusvariantsbasedontheirimpactontp53structuralstability
AT siddharthsinha comprehensiveidentificationofdeleteriousitp53imissensevusvariantsbasedontheirimpactontp53structuralstability
AT zixinqin comprehensiveidentificationofdeleteriousitp53imissensevusvariantsbasedontheirimpactontp53structuralstability
AT sanmingwang comprehensiveidentificationofdeleteriousitp53imissensevusvariantsbasedontheirimpactontp53structuralstability
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