Evolutionary Study of Disorder in Protein Sequences

Intrinsically disordered proteins (IDPs) contain regions lacking intrinsic globular structure (intrinsically disordered regions, IDRs). IDPs are present across the tree of life, with great variability of IDR type and frequency even between closely related taxa. To investigate the function of IDRs, w...

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Main Authors: Kristina Kastano, Gábor Erdős, Pablo Mier, Gregorio Alanis-Lobato, Vasilis J. Promponas, Zsuzsanna Dosztányi, Miguel A. Andrade-Navarro
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Biomolecules
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Online Access:https://www.mdpi.com/2218-273X/10/10/1413
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author Kristina Kastano
Gábor Erdős
Pablo Mier
Gregorio Alanis-Lobato
Vasilis J. Promponas
Zsuzsanna Dosztányi
Miguel A. Andrade-Navarro
author_facet Kristina Kastano
Gábor Erdős
Pablo Mier
Gregorio Alanis-Lobato
Vasilis J. Promponas
Zsuzsanna Dosztányi
Miguel A. Andrade-Navarro
author_sort Kristina Kastano
collection DOAJ
description Intrinsically disordered proteins (IDPs) contain regions lacking intrinsic globular structure (intrinsically disordered regions, IDRs). IDPs are present across the tree of life, with great variability of IDR type and frequency even between closely related taxa. To investigate the function of IDRs, we evaluated and compared the distribution of disorder content in 10,695 reference proteomes, confirming its high variability and finding certain correlation along the Euteleostomi (bony vertebrates) lineage to number of cell types. We used the comparison of orthologs to study the function of disorder related to increase in cell types, observing that multiple interacting subunits of protein complexes might gain IDRs in evolution, thus stressing the function of IDRs in modulating protein-protein interactions, particularly in the cell nucleus. Interestingly, the conservation of local compositional biases of IDPs follows residue-type specific patterns, with E- and K-rich regions being evolutionarily stable and Q- and A-rich regions being more dynamic. We provide a framework for targeted evolutionary studies of the emergence of IDRs. We believe that, given the large variability of IDR distributions in different species, studies using this evolutionary perspective are required.
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spelling doaj.art-4c1f0cc5f84f4716b084e3aad940f6e02023-11-20T16:14:12ZengMDPI AGBiomolecules2218-273X2020-10-011010141310.3390/biom10101413Evolutionary Study of Disorder in Protein SequencesKristina Kastano0Gábor Erdős1Pablo Mier2Gregorio Alanis-Lobato3Vasilis J. Promponas4Zsuzsanna Dosztányi5Miguel A. Andrade-Navarro6Faculty of Biology, Johannes Gutenberg University, Biozentrum I, Hans-Dieter-Hüsch-Weg 15, 55128 Mainz, GermanyMTA-ELTE Momentum Bioinformatics Research Group, Department of Biochemistry, ELTE Eötvös Loránd University, H-1117 Budapest, HungaryFaculty of Biology, Johannes Gutenberg University, Biozentrum I, Hans-Dieter-Hüsch-Weg 15, 55128 Mainz, GermanyHuman Embryo and Stem Cell Laboratory, The Francis Crick Institute, 1 Midland Road, London NW1 1AT, UKBioinformatics Research Laboratory, Department of Biological Sciences, University of Cyprus, 2109 Nicosia, CyprusMTA-ELTE Momentum Bioinformatics Research Group, Department of Biochemistry, ELTE Eötvös Loránd University, H-1117 Budapest, HungaryFaculty of Biology, Johannes Gutenberg University, Biozentrum I, Hans-Dieter-Hüsch-Weg 15, 55128 Mainz, GermanyIntrinsically disordered proteins (IDPs) contain regions lacking intrinsic globular structure (intrinsically disordered regions, IDRs). IDPs are present across the tree of life, with great variability of IDR type and frequency even between closely related taxa. To investigate the function of IDRs, we evaluated and compared the distribution of disorder content in 10,695 reference proteomes, confirming its high variability and finding certain correlation along the Euteleostomi (bony vertebrates) lineage to number of cell types. We used the comparison of orthologs to study the function of disorder related to increase in cell types, observing that multiple interacting subunits of protein complexes might gain IDRs in evolution, thus stressing the function of IDRs in modulating protein-protein interactions, particularly in the cell nucleus. Interestingly, the conservation of local compositional biases of IDPs follows residue-type specific patterns, with E- and K-rich regions being evolutionarily stable and Q- and A-rich regions being more dynamic. We provide a framework for targeted evolutionary studies of the emergence of IDRs. We believe that, given the large variability of IDR distributions in different species, studies using this evolutionary perspective are required.https://www.mdpi.com/2218-273X/10/10/1413intrinsically disordered proteinsintrinsically disordered regionscomparative genomicsortholog comparison
spellingShingle Kristina Kastano
Gábor Erdős
Pablo Mier
Gregorio Alanis-Lobato
Vasilis J. Promponas
Zsuzsanna Dosztányi
Miguel A. Andrade-Navarro
Evolutionary Study of Disorder in Protein Sequences
Biomolecules
intrinsically disordered proteins
intrinsically disordered regions
comparative genomics
ortholog comparison
title Evolutionary Study of Disorder in Protein Sequences
title_full Evolutionary Study of Disorder in Protein Sequences
title_fullStr Evolutionary Study of Disorder in Protein Sequences
title_full_unstemmed Evolutionary Study of Disorder in Protein Sequences
title_short Evolutionary Study of Disorder in Protein Sequences
title_sort evolutionary study of disorder in protein sequences
topic intrinsically disordered proteins
intrinsically disordered regions
comparative genomics
ortholog comparison
url https://www.mdpi.com/2218-273X/10/10/1413
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AT pablomier evolutionarystudyofdisorderinproteinsequences
AT gregorioalanislobato evolutionarystudyofdisorderinproteinsequences
AT vasilisjpromponas evolutionarystudyofdisorderinproteinsequences
AT zsuzsannadosztanyi evolutionarystudyofdisorderinproteinsequences
AT miguelaandradenavarro evolutionarystudyofdisorderinproteinsequences