The identification of protein domains that mediate functional interactions between Rab-GTPases and RabGAPs using 3D protein modeling

Jeremiah J Davie, Silviu L Faitar Department of Biology and Mathematics, School of Arts, Sciences, and Education, D’Youville College, Buffalo, NY, USA Abstract: Currently, time-consuming serial in vitro experimentation involving immunocytochemistry or radiolabeled materials is required to...

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Main Authors: Davie JJ, Faitar SL
Format: Article
Language:English
Published: Dove Medical Press 2017-04-01
Series:Advances and Applications in Bioinformatics and Chemistry
Subjects:
Online Access:https://www.dovepress.com/the-identification-of-protein-domains-that-mediate-functional-interact-peer-reviewed-article-AABC
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author Davie JJ
Faitar SL
author_facet Davie JJ
Faitar SL
author_sort Davie JJ
collection DOAJ
description Jeremiah J Davie, Silviu L Faitar Department of Biology and Mathematics, School of Arts, Sciences, and Education, D’Youville College, Buffalo, NY, USA Abstract: Currently, time-consuming serial in vitro experimentation involving immunocytochemistry or radiolabeled materials is required to identify which of the numerous Rab-GTPases (Rab) and Rab-GTPase activating proteins (RabGAP) are capable of functional interactions. These interactions are essential for numerous cellular functions, and in silico methods of reducing in vitro trial and error would accelerate the pace of research in cell biology. We have utilized a combination of three-dimensional protein modeling and protein bioinformatics to identify domains present in Rab proteins that are predictive of their functional interaction with a specific RabGAP. The RabF2 and RabSF1 domains appear to play functional roles in mediating the interaction between Rabs and RabGAPs. Moreover, the RabSF1 domain can be used to make in silico predictions of functional Rab/RabGAP pairs. This method is expected to be a broadly applicable tool for predicting protein–protein interactions where existing crystal structures for homologs of the proteins of interest are available. Keywords: GTP hydrolysis, Rab proteins, RabGAPs, protein–protein interactions, structural informatics, computational biology, Evi5, Evi5L
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spelling doaj.art-648289d13d074cbb90d23c3c0a551ad32022-12-22T03:22:47ZengDove Medical PressAdvances and Applications in Bioinformatics and Chemistry1178-69492017-04-01Volume 10475632292The identification of protein domains that mediate functional interactions between Rab-GTPases and RabGAPs using 3D protein modelingDavie JJFaitar SLJeremiah J Davie, Silviu L Faitar Department of Biology and Mathematics, School of Arts, Sciences, and Education, D’Youville College, Buffalo, NY, USA Abstract: Currently, time-consuming serial in vitro experimentation involving immunocytochemistry or radiolabeled materials is required to identify which of the numerous Rab-GTPases (Rab) and Rab-GTPase activating proteins (RabGAP) are capable of functional interactions. These interactions are essential for numerous cellular functions, and in silico methods of reducing in vitro trial and error would accelerate the pace of research in cell biology. We have utilized a combination of three-dimensional protein modeling and protein bioinformatics to identify domains present in Rab proteins that are predictive of their functional interaction with a specific RabGAP. The RabF2 and RabSF1 domains appear to play functional roles in mediating the interaction between Rabs and RabGAPs. Moreover, the RabSF1 domain can be used to make in silico predictions of functional Rab/RabGAP pairs. This method is expected to be a broadly applicable tool for predicting protein–protein interactions where existing crystal structures for homologs of the proteins of interest are available. Keywords: GTP hydrolysis, Rab proteins, RabGAPs, protein–protein interactions, structural informatics, computational biology, Evi5, Evi5Lhttps://www.dovepress.com/the-identification-of-protein-domains-that-mediate-functional-interact-peer-reviewed-article-AABCGTP HydrolysisRab ProteinsRabGAPsProtein-Protein InteractionsStructural InformaticsComputational Biology
spellingShingle Davie JJ
Faitar SL
The identification of protein domains that mediate functional interactions between Rab-GTPases and RabGAPs using 3D protein modeling
Advances and Applications in Bioinformatics and Chemistry
GTP Hydrolysis
Rab Proteins
RabGAPs
Protein-Protein Interactions
Structural Informatics
Computational Biology
title The identification of protein domains that mediate functional interactions between Rab-GTPases and RabGAPs using 3D protein modeling
title_full The identification of protein domains that mediate functional interactions between Rab-GTPases and RabGAPs using 3D protein modeling
title_fullStr The identification of protein domains that mediate functional interactions between Rab-GTPases and RabGAPs using 3D protein modeling
title_full_unstemmed The identification of protein domains that mediate functional interactions between Rab-GTPases and RabGAPs using 3D protein modeling
title_short The identification of protein domains that mediate functional interactions between Rab-GTPases and RabGAPs using 3D protein modeling
title_sort identification of protein domains that mediate functional interactions between rab gtpases and rabgaps using 3d protein modeling
topic GTP Hydrolysis
Rab Proteins
RabGAPs
Protein-Protein Interactions
Structural Informatics
Computational Biology
url https://www.dovepress.com/the-identification-of-protein-domains-that-mediate-functional-interact-peer-reviewed-article-AABC
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