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The conformational selection theory provides an elegant rationalization of the recognition mechanism, especially valid in cases when unstructured protein regions are involved. The recognition of a poorly structured peptide, namely XPA<jats:sub>67\u201080<\/jats:sub>, by its target receptor ERCC1, falls in this challenging study category. The microsecond molecular dynamics (MD) simulations, discussed in this work, show that the conformational propensity of the wild type XPA<jats:sub>67\u201080<\/jats:sub> peptide in solution supports conformational selection as the key mechanism driving its molecular recognition by ERCC1. Moreover, all the mutations of the XPA<jats:sub>67\u201080<\/jats:sub> peptide studied here cause a significant increase of its conformational disorder, relative to the wild type. Comparison to experimental data suggests that the loss of the recognized structural motifs at the microscopic time scale can contribute to the critical decrease in binding observed for one of the mutants, further substantiating the key role of conformational selection in recognition. Ultimately, because of the high sequence identity and analogy in binding, it is conceivable that the conclusions of this study on the XPA<jats:sub>67\u201080<\/jats:sub> peptide also apply to the ERCC1\u2010binding domain of the XPA protein. Proteins 2015; 83:1341\u20131351. \u00a9 2015 Wiley Periodicals, Inc.<\/jats:p>","DOI":"10.1002\/prot.24825","type":"journal-article","created":{"date-parts":[[2015,5,13]],"date-time":"2015-05-13T22:43:30Z","timestamp":1431557010000},"page":"1341-1351","source":"Crossref","is-referenced-by-count":3,"title":["The role of conformational selection in the molecular recognition of the wild type and mutants <scp>XPA<\/scp><sub>67\u201080<\/sub> peptides by <scp>ERCC<\/scp>1"],"prefix":"10.1002","volume":"83","author":[{"given":"Elisa","family":"Fadda","sequence":"first","affiliation":[{"name":"Department of Chemistry Maynooth University Maynooth Kildare Ireland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2015,5,29]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-physchem-040412-110047"},{"key":"e_1_2_7_3_1","first-page":"2984","article-title":"Einfluss der configuration auf die Wirkung der Enzyme","volume":"27","author":"Fischer E.","year":"1894","journal-title":"Ber Dtsch Chem Ges"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.biophys.32.110601.142532"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1719636"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.44.2.98"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/prot.20931"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.drudis.2009.01.003"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1006\/jmbi.2001.4695"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1038\/nchembio.1213"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1186\/2046-1682-6-15"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/jmr.961"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1038\/nchembio.232"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bpc.2013.10.007"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1157092"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tibs.2009.07.004"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature05959"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1110\/ps.8.6.1181"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tibs.2010.04.009"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/pro.2539"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pcbi.1002704"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.str.2004.09.014"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bpc.2013.09.003"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1021\/bi400929b"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1038\/sj.emboj.7601894"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1128\/MCB.15.4.1993"},{"key":"e_1_2_7_27_1","doi-asserted-by":"publisher","DOI":"10.1038\/nrc2342"},{"key":"e_1_2_7_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.dnarep.2008.01.018"},{"key":"e_1_2_7_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.str.2012.03.004"},{"key":"e_1_2_7_30_1","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gkm503"},{"key":"e_1_2_7_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bpj.2013.04.023"},{"key":"e_1_2_7_32_1","doi-asserted-by":"publisher","DOI":"10.1074\/jbc.M109.067538"},{"key":"e_1_2_7_33_1","doi-asserted-by":"publisher","DOI":"10.1021\/ct700301q"},{"key":"e_1_2_7_34_1","unstructured":"Maestro version 9.7. 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