Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins

Autores
Jozefkowicz, C.; Rosi, P.; Sigaut, L.; Soto, G.; Pietrasanta, L.I.; Amodeo, G.; Alleva, K.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Research done in the last years strongly support the hypothesis that PIP aquaporin can form heterooligomeric assemblies, specially combining PIP2 monomers with PIP1 monomers. Nevertheless, the structural elements involved in the ruling of homo versus heterooligomeric organization are not completely elucidated. In this work we unveil some features of monomer-monomer interaction in Beta vulgaris PIP aquaporins. Our results show that while BvPIP2;2 is able to interact with BvPIP1;1, BvPIP2;1 shows no functional interaction. The lack of functional interaction between BvPIP2;1 and BvPIP1;1 was further corroborated by dose-response curves of water permeability due to aquaporin activity exposed to different acidic conditions. We also found that BvPIP2;1 is unable to translocate BvPIP1;1-ECFP from an intracellular position to the plasma membrane when co-expressed, as BvPIP2;2 does. Moreover we postulate that the first extracellular loop (loop A) of BvPIP2;1, could be relevant for the functional interaction with BvPIP1;1. Thus, we investigate BvPIP2;1 loop A at an atomic level by Molecular Dynamics Simulation (MDS) and by direct mutagenesis. We found that, within the tetramer, each loop A presents a dissimilar behavior. Besides, BvPIP2;1 loop A mutants restore functional interaction with BvPIP1;1. This work is a contribution to unravel how PIP2 and PIP1 interact to form functional heterooligomeric assemblies. We postulate that BvPIP2;1 loop A is relevant for the lack of functional interaction with BvPIP1;1 and that the monomer composition of PIP assemblies determines their functional properties. © 2013 Jozefkowicz et al.
Fil:Rosi, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Sigaut, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Soto, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
PLoS ONE 2013;8(3)
Materia
aquaporin
complementary RNA
article
beet
cell membrane
confocal microscopy
controlled study
dose response
molecular dynamics
mutagenesis
nonhuman
nucleotide sequence
oocyte
pH
phylogeny
protein content
protein expression
protein function
protein localization
protein protein interaction
RNA synthesis
sequence analysis
water permeability
water transport
Amino Acid Sequence
Animals
Aquaporins
Beta vulgaris
Cell Membrane Permeability
Conserved Sequence
Hydrogen-Ion Concentration
Molecular Dynamics Simulation
Molecular Sequence Data
Mutant Proteins
Osmosis
Plant Proteins
Protein Binding
Protein Structure, Secondary
Recombinant Proteins
Structure-Activity Relationship
Xenopus laevis
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_19326203_v8_n3_p_Jozefkowicz

id BDUBAFCEN_38f4558bd5201d35dfbf6f968972204c
oai_identifier_str paperaa:paper_19326203_v8_n3_p_Jozefkowicz
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP AquaporinsJozefkowicz, C.Rosi, P.Sigaut, L.Soto, G.Pietrasanta, L.I.Amodeo, G.Alleva, K.aquaporincomplementary RNAarticlebeetcell membraneconfocal microscopycontrolled studydose responsemolecular dynamicsmutagenesisnonhumannucleotide sequenceoocytepHphylogenyprotein contentprotein expressionprotein functionprotein localizationprotein protein interactionRNA synthesissequence analysiswater permeabilitywater transportAmino Acid SequenceAnimalsAquaporinsBeta vulgarisCell Membrane PermeabilityConserved SequenceHydrogen-Ion ConcentrationMolecular Dynamics SimulationMolecular Sequence DataMutant ProteinsOsmosisPlant ProteinsProtein BindingProtein Structure, SecondaryRecombinant ProteinsStructure-Activity RelationshipXenopus laevisResearch done in the last years strongly support the hypothesis that PIP aquaporin can form heterooligomeric assemblies, specially combining PIP2 monomers with PIP1 monomers. Nevertheless, the structural elements involved in the ruling of homo versus heterooligomeric organization are not completely elucidated. In this work we unveil some features of monomer-monomer interaction in Beta vulgaris PIP aquaporins. Our results show that while BvPIP2;2 is able to interact with BvPIP1;1, BvPIP2;1 shows no functional interaction. The lack of functional interaction between BvPIP2;1 and BvPIP1;1 was further corroborated by dose-response curves of water permeability due to aquaporin activity exposed to different acidic conditions. We also found that BvPIP2;1 is unable to translocate BvPIP1;1-ECFP from an intracellular position to the plasma membrane when co-expressed, as BvPIP2;2 does. Moreover we postulate that the first extracellular loop (loop A) of BvPIP2;1, could be relevant for the functional interaction with BvPIP1;1. Thus, we investigate BvPIP2;1 loop A at an atomic level by Molecular Dynamics Simulation (MDS) and by direct mutagenesis. We found that, within the tetramer, each loop A presents a dissimilar behavior. Besides, BvPIP2;1 loop A mutants restore functional interaction with BvPIP1;1. This work is a contribution to unravel how PIP2 and PIP1 interact to form functional heterooligomeric assemblies. We postulate that BvPIP2;1 loop A is relevant for the lack of functional interaction with BvPIP1;1 and that the monomer composition of PIP assemblies determines their functional properties. © 2013 Jozefkowicz et al.Fil:Rosi, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Sigaut, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Soto, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_19326203_v8_n3_p_JozefkowiczPLoS ONE 2013;8(3)reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:42:58Zpaperaa:paper_19326203_v8_n3_p_JozefkowiczInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:42:59.34Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins
title Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins
spellingShingle Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins
Jozefkowicz, C.
aquaporin
complementary RNA
article
beet
cell membrane
confocal microscopy
controlled study
dose response
molecular dynamics
mutagenesis
nonhuman
nucleotide sequence
oocyte
pH
phylogeny
protein content
protein expression
protein function
protein localization
protein protein interaction
RNA synthesis
sequence analysis
water permeability
water transport
Amino Acid Sequence
Animals
Aquaporins
Beta vulgaris
Cell Membrane Permeability
Conserved Sequence
Hydrogen-Ion Concentration
Molecular Dynamics Simulation
Molecular Sequence Data
Mutant Proteins
Osmosis
Plant Proteins
Protein Binding
Protein Structure, Secondary
Recombinant Proteins
Structure-Activity Relationship
Xenopus laevis
title_short Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins
title_full Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins
title_fullStr Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins
title_full_unstemmed Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins
title_sort Loop A Is Critical for the Functional Interaction of Two Beta vulgaris PIP Aquaporins
dc.creator.none.fl_str_mv Jozefkowicz, C.
Rosi, P.
Sigaut, L.
Soto, G.
Pietrasanta, L.I.
Amodeo, G.
Alleva, K.
author Jozefkowicz, C.
author_facet Jozefkowicz, C.
Rosi, P.
Sigaut, L.
Soto, G.
Pietrasanta, L.I.
Amodeo, G.
Alleva, K.
author_role author
author2 Rosi, P.
Sigaut, L.
Soto, G.
Pietrasanta, L.I.
Amodeo, G.
Alleva, K.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv aquaporin
complementary RNA
article
beet
cell membrane
confocal microscopy
controlled study
dose response
molecular dynamics
mutagenesis
nonhuman
nucleotide sequence
oocyte
pH
phylogeny
protein content
protein expression
protein function
protein localization
protein protein interaction
RNA synthesis
sequence analysis
water permeability
water transport
Amino Acid Sequence
Animals
Aquaporins
Beta vulgaris
Cell Membrane Permeability
Conserved Sequence
Hydrogen-Ion Concentration
Molecular Dynamics Simulation
Molecular Sequence Data
Mutant Proteins
Osmosis
Plant Proteins
Protein Binding
Protein Structure, Secondary
Recombinant Proteins
Structure-Activity Relationship
Xenopus laevis
topic aquaporin
complementary RNA
article
beet
cell membrane
confocal microscopy
controlled study
dose response
molecular dynamics
mutagenesis
nonhuman
nucleotide sequence
oocyte
pH
phylogeny
protein content
protein expression
protein function
protein localization
protein protein interaction
RNA synthesis
sequence analysis
water permeability
water transport
Amino Acid Sequence
Animals
Aquaporins
Beta vulgaris
Cell Membrane Permeability
Conserved Sequence
Hydrogen-Ion Concentration
Molecular Dynamics Simulation
Molecular Sequence Data
Mutant Proteins
Osmosis
Plant Proteins
Protein Binding
Protein Structure, Secondary
Recombinant Proteins
Structure-Activity Relationship
Xenopus laevis
dc.description.none.fl_txt_mv Research done in the last years strongly support the hypothesis that PIP aquaporin can form heterooligomeric assemblies, specially combining PIP2 monomers with PIP1 monomers. Nevertheless, the structural elements involved in the ruling of homo versus heterooligomeric organization are not completely elucidated. In this work we unveil some features of monomer-monomer interaction in Beta vulgaris PIP aquaporins. Our results show that while BvPIP2;2 is able to interact with BvPIP1;1, BvPIP2;1 shows no functional interaction. The lack of functional interaction between BvPIP2;1 and BvPIP1;1 was further corroborated by dose-response curves of water permeability due to aquaporin activity exposed to different acidic conditions. We also found that BvPIP2;1 is unable to translocate BvPIP1;1-ECFP from an intracellular position to the plasma membrane when co-expressed, as BvPIP2;2 does. Moreover we postulate that the first extracellular loop (loop A) of BvPIP2;1, could be relevant for the functional interaction with BvPIP1;1. Thus, we investigate BvPIP2;1 loop A at an atomic level by Molecular Dynamics Simulation (MDS) and by direct mutagenesis. We found that, within the tetramer, each loop A presents a dissimilar behavior. Besides, BvPIP2;1 loop A mutants restore functional interaction with BvPIP1;1. This work is a contribution to unravel how PIP2 and PIP1 interact to form functional heterooligomeric assemblies. We postulate that BvPIP2;1 loop A is relevant for the lack of functional interaction with BvPIP1;1 and that the monomer composition of PIP assemblies determines their functional properties. © 2013 Jozefkowicz et al.
Fil:Rosi, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Sigaut, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Soto, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description Research done in the last years strongly support the hypothesis that PIP aquaporin can form heterooligomeric assemblies, specially combining PIP2 monomers with PIP1 monomers. Nevertheless, the structural elements involved in the ruling of homo versus heterooligomeric organization are not completely elucidated. In this work we unveil some features of monomer-monomer interaction in Beta vulgaris PIP aquaporins. Our results show that while BvPIP2;2 is able to interact with BvPIP1;1, BvPIP2;1 shows no functional interaction. The lack of functional interaction between BvPIP2;1 and BvPIP1;1 was further corroborated by dose-response curves of water permeability due to aquaporin activity exposed to different acidic conditions. We also found that BvPIP2;1 is unable to translocate BvPIP1;1-ECFP from an intracellular position to the plasma membrane when co-expressed, as BvPIP2;2 does. Moreover we postulate that the first extracellular loop (loop A) of BvPIP2;1, could be relevant for the functional interaction with BvPIP1;1. Thus, we investigate BvPIP2;1 loop A at an atomic level by Molecular Dynamics Simulation (MDS) and by direct mutagenesis. We found that, within the tetramer, each loop A presents a dissimilar behavior. Besides, BvPIP2;1 loop A mutants restore functional interaction with BvPIP1;1. This work is a contribution to unravel how PIP2 and PIP1 interact to form functional heterooligomeric assemblies. We postulate that BvPIP2;1 loop A is relevant for the lack of functional interaction with BvPIP1;1 and that the monomer composition of PIP assemblies determines their functional properties. © 2013 Jozefkowicz et al.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_19326203_v8_n3_p_Jozefkowicz
url http://hdl.handle.net/20.500.12110/paper_19326203_v8_n3_p_Jozefkowicz
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv PLoS ONE 2013;8(3)
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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