Structural and Energetic Characterization of the Ankyrin Repeat Protein Family.

Ankyrin repeat containing proteins are one of the most abundant solenoid folds. Usually implicated in specific protein-protein interactions, these proteins are readily amenable for design, with promising biotechnological and biomedical applications. Studying repeat protein families presents technica...

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Main Authors: R Gonzalo Parra, Rocío Espada, Nina Verstraete, Diego U Ferreiro
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-12-01
Series:PLoS Computational Biology
Online Access:http://europepmc.org/articles/PMC4687027?pdf=render
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author R Gonzalo Parra
Rocío Espada
Nina Verstraete
Diego U Ferreiro
author_facet R Gonzalo Parra
Rocío Espada
Nina Verstraete
Diego U Ferreiro
author_sort R Gonzalo Parra
collection DOAJ
description Ankyrin repeat containing proteins are one of the most abundant solenoid folds. Usually implicated in specific protein-protein interactions, these proteins are readily amenable for design, with promising biotechnological and biomedical applications. Studying repeat protein families presents technical challenges due to the high sequence divergence among the repeating units. We developed and applied a systematic method to consistently identify and annotate the structural repetitions over the members of the complete Ankyrin Repeat Protein Family, with increased sensitivity over previous studies. We statistically characterized the number of repeats, the folding of the repeat-arrays, their structural variations, insertions and deletions. An energetic analysis of the local frustration patterns reveal the basic features underlying fold stability and its relation to the functional binding regions. We found a strong linear correlation between the conservation of the energetic features in the repeat arrays and their sequence variations, and discuss new insights into the organization and function of these ubiquitous proteins.
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spelling doaj.art-5347960a9587449ba8ac623d6f36a6742022-12-22T03:45:43ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582015-12-011112e100465910.1371/journal.pcbi.1004659Structural and Energetic Characterization of the Ankyrin Repeat Protein Family.R Gonzalo ParraRocío EspadaNina VerstraeteDiego U FerreiroAnkyrin repeat containing proteins are one of the most abundant solenoid folds. Usually implicated in specific protein-protein interactions, these proteins are readily amenable for design, with promising biotechnological and biomedical applications. Studying repeat protein families presents technical challenges due to the high sequence divergence among the repeating units. We developed and applied a systematic method to consistently identify and annotate the structural repetitions over the members of the complete Ankyrin Repeat Protein Family, with increased sensitivity over previous studies. We statistically characterized the number of repeats, the folding of the repeat-arrays, their structural variations, insertions and deletions. An energetic analysis of the local frustration patterns reveal the basic features underlying fold stability and its relation to the functional binding regions. We found a strong linear correlation between the conservation of the energetic features in the repeat arrays and their sequence variations, and discuss new insights into the organization and function of these ubiquitous proteins.http://europepmc.org/articles/PMC4687027?pdf=render
spellingShingle R Gonzalo Parra
Rocío Espada
Nina Verstraete
Diego U Ferreiro
Structural and Energetic Characterization of the Ankyrin Repeat Protein Family.
PLoS Computational Biology
title Structural and Energetic Characterization of the Ankyrin Repeat Protein Family.
title_full Structural and Energetic Characterization of the Ankyrin Repeat Protein Family.
title_fullStr Structural and Energetic Characterization of the Ankyrin Repeat Protein Family.
title_full_unstemmed Structural and Energetic Characterization of the Ankyrin Repeat Protein Family.
title_short Structural and Energetic Characterization of the Ankyrin Repeat Protein Family.
title_sort structural and energetic characterization of the ankyrin repeat protein family
url http://europepmc.org/articles/PMC4687027?pdf=render
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