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Performance of in silico tools for the evaluation of UGT1A1 missense variants

dc.contributor.authorRodrigues, Carina
dc.contributor.authorSantos-Silva, Alice
dc.contributor.authorCosta, Elísio
dc.contributor.authorBronze-da-Rocha, Elsa
dc.date.accessioned2016-03-02T15:47:40Z
dc.date.available2016-03-02T15:47:40Z
dc.date.issued2015
dc.description.abstractVariations in the gene encoding uridine diphosphate glucuronosyltransferase 1A1 (UGT1A1) are particularly important because they have been associated with hyperbilirubinemia in Gilbert’s and Crigler–Najjar syndromes as well as with changes in drug metabolism. Several variants associated with these phenotypes are nonsynonymous single-nucleotide polymorphisms (nsSNPs). Bioinformatics approaches have gained increasing importance in predicting the functional significance of these variants. This study was focused on the predictive ability of bioinformatics approaches to determine the pathogenicity of human UGT1A1 nsSNPs, which were previously characterized at the protein level by in vivo and in vitro studies. Using 16 Web algorithms, we evaluated 48 nsSNPs described in the literature and databases. Eight of these algorithms reached or exceeded 90% sensitivity and six presented a Matthews correlation coefficient above 0.46. The best-performing method was MutPred, followed by Sorting Intolerant from Tolerant (SIFT). The prediction measures varied significantly when predictors such us SIFT, polyphen-2, and Prediction of Pathological Mutations on Proteins were run with their native alignment generated by the tool, or with an input alignment that was strictly built with UGT1A1 orthologs and manually curated. Our results showed that the prediction performance of some methods based on sequence conservation analysis can be negatively affected when nsSNPs are positioned at the hypervariable or constant regions of UGT1A1 ortholog sequences.pt_PT
dc.identifier.citationRodrigues, Carina; Santos-Silva, Alice; Costa, Elísio; Bronze-da-Rocha, Elsa (2015). Performance of in silico tools for the evaluation of UGT1A1 missense variants. Human Mutation. ISSN 1098-1004. 36:12,1215–1225pt_PT
dc.identifier.doi10.1002/humu.22903pt_PT
dc.identifier.issn1098-1004
dc.identifier.urihttp://hdl.handle.net/10198/12776
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWiley-Blackwellpt_PT
dc.relationSFRH/BD/42791/2007
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectnsSNPspt_PT
dc.subjectGenotypept_PT
dc.subjectBioinformaticspt_PT
dc.subjectPhenotypept_PT
dc.subjectProtein functionpt_PT
dc.titlePerformance of in silico tools for the evaluation of UGT1A1 missense variantspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1225pt_PT
oaire.citation.startPage1215pt_PT
oaire.citation.titleHuman Mutationpt_PT
oaire.citation.volume36pt_PT
person.familyNameRodrigues
person.givenNameCarina
person.identifier.ciencia-idC415-C677-0253
person.identifier.orcid0000-0001-9773-1413
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationef666665-6593-48be-bc48-6a1bb58bedbd
relation.isAuthorOfPublication.latestForDiscoveryef666665-6593-48be-bc48-6a1bb58bedbd

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