Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis

We have cloned the gene encoding the TRK transporter of the soil yeast Schwanniomyces occidentalis and obtained the HAK1 trk1D and the hak1D TRK1 mutant strains. Analyses of the transport capacities of these mutants have shown that (i) the HAK1 and the TRK1 potassium transporters are the only transp...

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Authors: Bañuelos. María, Madrid González, Ricardo, Rodríguez‐Navarro, Alonso
Format: article
Publication Date:2002
Country:España
Institution:Universidad Complutense de Madrid (UCM)
Repository:Docta Complutense
Language:English
OAI Identifier:oai:docta.ucm.es:20.500.14352/98125
Online Access:https://hdl.handle.net/20.500.14352/98125
Access Level:Open access
Keyword:576
Biología celular (Biología)
2407 Biología Celular
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oai_identifier_str oai:docta.ucm.es:20.500.14352/98125
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spelling Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalisBañuelos. MaríaMadrid González, RicardoRodríguez‐Navarro, Alonso576Biología celular (Biología)2407 Biología CelularWe have cloned the gene encoding the TRK transporter of the soil yeast Schwanniomyces occidentalis and obtained the HAK1 trk1D and the hak1D TRK1 mutant strains. Analyses of the transport capacities of these mutants have shown that (i) the HAK1 and the TRK1 potassium transporters are the only transporters operating at low and medium K1 concentrations (, 1 mM); (ii) the HAK1 transporter is functional at low pH but fails at high pH; and (iii) the TRK1 transporter functions at neutral and high pH and fails at low pH. At neutral pH, both transporters are functional, but HAK1 is not expressed, except at very low K1 concentrations (, 50 mM) where HAK1 is very effective. TRK1 is also involved in the control of the membrane potential.Wiley Universidad Complutense de Madrid20022002-01-0120022002-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/98125reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/981252026-06-02T12:44:21Z
dc.title.none.fl_str_mv Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis
title Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis
spellingShingle Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis
Bañuelos. María
576
Biología celular (Biología)
2407 Biología Celular
title_short Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis
title_full Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis
title_fullStr Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis
title_full_unstemmed Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis
title_sort Individual functions of the HAK and TRK potassium transporters of Schwanniomyces occidentalis
dc.creator.none.fl_str_mv Bañuelos. María
Madrid González, Ricardo
Rodríguez‐Navarro, Alonso
author Bañuelos. María
author_facet Bañuelos. María
Madrid González, Ricardo
Rodríguez‐Navarro, Alonso
author_role author
author2 Madrid González, Ricardo
Rodríguez‐Navarro, Alonso
author2_role author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 576
Biología celular (Biología)
2407 Biología Celular
topic 576
Biología celular (Biología)
2407 Biología Celular
description We have cloned the gene encoding the TRK transporter of the soil yeast Schwanniomyces occidentalis and obtained the HAK1 trk1D and the hak1D TRK1 mutant strains. Analyses of the transport capacities of these mutants have shown that (i) the HAK1 and the TRK1 potassium transporters are the only transporters operating at low and medium K1 concentrations (, 1 mM); (ii) the HAK1 transporter is functional at low pH but fails at high pH; and (iii) the TRK1 transporter functions at neutral and high pH and fails at low pH. At neutral pH, both transporters are functional, but HAK1 is not expressed, except at very low K1 concentrations (, 50 mM) where HAK1 is very effective. TRK1 is also involved in the control of the membrane potential.
publishDate 2002
dc.date.none.fl_str_mv 2002
2002-01-01
2002
2002-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/98125
url https://hdl.handle.net/20.500.14352/98125
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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