PON-SC – program for identifying steric clashes caused by amino acid substitutions

Abstract Background Amino acid substitutions due to DNA nucleotide replacements are frequently disease-causing because of affecting functionally important sites. If the substituting amino acid does not fit into the protein, it causes structural alterations that are often harmful. Clashes of amino ac...

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Main Authors: Jelena Čalyševa, Mauno Vihinen
Format: Article
Language:English
Published: BMC 2017-11-01
Series:BMC Bioinformatics
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12859-017-1947-7
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author Jelena Čalyševa
Mauno Vihinen
author_facet Jelena Čalyševa
Mauno Vihinen
author_sort Jelena Čalyševa
collection DOAJ
description Abstract Background Amino acid substitutions due to DNA nucleotide replacements are frequently disease-causing because of affecting functionally important sites. If the substituting amino acid does not fit into the protein, it causes structural alterations that are often harmful. Clashes of amino acids cause local or global structural changes. Testing structural compatibility of variations has been difficult due to the lack of a dedicated method that could handle vast amounts of variation data produced by next generation sequencing technologies. Results We developed a method, PON-SC, for detecting protein structural clashes due to amino acid substitutions. The method utilizes side chain rotamer library and tests whether any of the common rotamers can be fitted into the protein structure. The tool was tested both with variants that cause and do not cause clashes and found to have accuracy of 0.71 over five test datasets. Conclusions We developed a fast method for residue side chain clash detection. The method provides in addition to the prediction also visualization of the variant in three dimensional structure.
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spelling doaj.art-53cff3355a1947788524ca9f233d6b1a2022-12-22T03:07:46ZengBMCBMC Bioinformatics1471-21052017-11-011811810.1186/s12859-017-1947-7PON-SC – program for identifying steric clashes caused by amino acid substitutionsJelena Čalyševa0Mauno Vihinen1Protein Structure and Bioinformatics, Department of Experimental Medical Science, Lund UniversityProtein Structure and Bioinformatics, Department of Experimental Medical Science, Lund UniversityAbstract Background Amino acid substitutions due to DNA nucleotide replacements are frequently disease-causing because of affecting functionally important sites. If the substituting amino acid does not fit into the protein, it causes structural alterations that are often harmful. Clashes of amino acids cause local or global structural changes. Testing structural compatibility of variations has been difficult due to the lack of a dedicated method that could handle vast amounts of variation data produced by next generation sequencing technologies. Results We developed a method, PON-SC, for detecting protein structural clashes due to amino acid substitutions. The method utilizes side chain rotamer library and tests whether any of the common rotamers can be fitted into the protein structure. The tool was tested both with variants that cause and do not cause clashes and found to have accuracy of 0.71 over five test datasets. Conclusions We developed a fast method for residue side chain clash detection. The method provides in addition to the prediction also visualization of the variant in three dimensional structure.http://link.springer.com/article/10.1186/s12859-017-1947-7Amino acid substitutionVariation interpretationStructural clashesSide chain rotamers
spellingShingle Jelena Čalyševa
Mauno Vihinen
PON-SC – program for identifying steric clashes caused by amino acid substitutions
BMC Bioinformatics
Amino acid substitution
Variation interpretation
Structural clashes
Side chain rotamers
title PON-SC – program for identifying steric clashes caused by amino acid substitutions
title_full PON-SC – program for identifying steric clashes caused by amino acid substitutions
title_fullStr PON-SC – program for identifying steric clashes caused by amino acid substitutions
title_full_unstemmed PON-SC – program for identifying steric clashes caused by amino acid substitutions
title_short PON-SC – program for identifying steric clashes caused by amino acid substitutions
title_sort pon sc program for identifying steric clashes caused by amino acid substitutions
topic Amino acid substitution
Variation interpretation
Structural clashes
Side chain rotamers
url http://link.springer.com/article/10.1186/s12859-017-1947-7
work_keys_str_mv AT jelenacalyseva ponscprogramforidentifyingstericclashescausedbyaminoacidsubstitutions
AT maunovihinen ponscprogramforidentifyingstericclashescausedbyaminoacidsubstitutions