Effect of the Water Model in Simulations of Protein–Protein Recognition and Association

We study self-association of ubiquitin and the disordered protein ACTR using the most commonly used water models. We find that dissociation events are found only with TIP4P-EW and TIP4P/2005, while the widely used TIP3P water model produces straightforward aggregation of the molecules due to the abs...

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Main Authors: Agustí Emperador, Ramon Crehuet, Elvira Guàrdia
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/13/2/176
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author Agustí Emperador
Ramon Crehuet
Elvira Guàrdia
author_facet Agustí Emperador
Ramon Crehuet
Elvira Guàrdia
author_sort Agustí Emperador
collection DOAJ
description We study self-association of ubiquitin and the disordered protein ACTR using the most commonly used water models. We find that dissociation events are found only with TIP4P-EW and TIP4P/2005, while the widely used TIP3P water model produces straightforward aggregation of the molecules due to the absence of dissociation events. We also find that TIP4P/2005 is the only water model that reproduces the fast association/dissociation dynamics of ubiquitin and best identifies its binding surface. Our results show the critical role of the water model in the description of protein–protein interactions and binding.
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spelling doaj.art-410280b8c01e4d6daa5191ba5b6219c82023-11-21T08:57:06ZengMDPI AGPolymers2073-43602021-01-0113217610.3390/polym13020176Effect of the Water Model in Simulations of Protein–Protein Recognition and AssociationAgustí Emperador0Ramon Crehuet1Elvira Guàrdia2Department of Physics, Universitat Politècnica de Catalunya, B4-B5 Campus Nord, Jordi Girona 1-3, 08034 Barcelona, SpainCSIC-Institute for Advanced Chemistry of Catalonia (IQAC), Jordi Girona 18-26, 08034 Barcelona, SpainDepartment of Physics, Universitat Politècnica de Catalunya, B4-B5 Campus Nord, Jordi Girona 1-3, 08034 Barcelona, SpainWe study self-association of ubiquitin and the disordered protein ACTR using the most commonly used water models. We find that dissociation events are found only with TIP4P-EW and TIP4P/2005, while the widely used TIP3P water model produces straightforward aggregation of the molecules due to the absence of dissociation events. We also find that TIP4P/2005 is the only water model that reproduces the fast association/dissociation dynamics of ubiquitin and best identifies its binding surface. Our results show the critical role of the water model in the description of protein–protein interactions and binding.https://www.mdpi.com/2073-4360/13/2/176water modelprotein associationprotein–protein interactionubiquitinACTRmolecular dynamics
spellingShingle Agustí Emperador
Ramon Crehuet
Elvira Guàrdia
Effect of the Water Model in Simulations of Protein–Protein Recognition and Association
Polymers
water model
protein association
protein–protein interaction
ubiquitin
ACTR
molecular dynamics
title Effect of the Water Model in Simulations of Protein–Protein Recognition and Association
title_full Effect of the Water Model in Simulations of Protein–Protein Recognition and Association
title_fullStr Effect of the Water Model in Simulations of Protein–Protein Recognition and Association
title_full_unstemmed Effect of the Water Model in Simulations of Protein–Protein Recognition and Association
title_short Effect of the Water Model in Simulations of Protein–Protein Recognition and Association
title_sort effect of the water model in simulations of protein protein recognition and association
topic water model
protein association
protein–protein interaction
ubiquitin
ACTR
molecular dynamics
url https://www.mdpi.com/2073-4360/13/2/176
work_keys_str_mv AT agustiemperador effectofthewatermodelinsimulationsofproteinproteinrecognitionandassociation
AT ramoncrehuet effectofthewatermodelinsimulationsofproteinproteinrecognitionandassociation
AT elviraguardia effectofthewatermodelinsimulationsofproteinproteinrecognitionandassociation