A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis
- Autores
- Paggi, Roberto Alejandro; Gimenez, Maria Ines; de Castro, Rosana Esther; Cesari, Andreina
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Proteins present in the archaeal cell envelope play key roles in a variety of processes necessary for survival in extreme environments. The haloarchaeon Haloferax volcanii is a good model for membrane proteomic studies because its genome sequence is known, it can be genetically manipulated, and a number of studies at the “omics” level have been performed in this organism. This work reports an easy strategy to improve the resolution of acidic membrane proteins from H. volcanii by 2DE. The method is based on the solubilization, delipidation, and salt removal from membrane proteins. Due to the abundance of the S-layer glycoprotein (SLG) in membrane protein extracts, other proteins from the envelope are consequently underrepresented. Thus, a protocol to reduce the amount of the SLG by EDTA treatment was applied and 11 cm narrow range pH (3.9–5.1) IPG strips were used to fractionate the remaining proteins. Using this method, horizontal streaking was substantially decreased and at least 75 defined spots (20% of the predicted membrane proteome within this pI/Mw range) were reproducibly detected. Two of these spots were identified as thermosome subunit 1 and NADH dehydrogenase from H. volcanii, confirming that proteins from the membrane fraction were enriched. Removal of the SLG from membrane protein extracts can be applied to increase protein load for 2DE as well as for other proteomic methods.
Fil: Paggi, Roberto Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Gimenez, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: de Castro, Rosana Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina
Fil: Cesari, Andreina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina - Materia
-
2d Electrophoresis
Haloarchaea
Acidic Membrane Proteins - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/12877
Ver los metadatos del registro completo
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A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresisPaggi, Roberto AlejandroGimenez, Maria Inesde Castro, Rosana EstherCesari, Andreina2d ElectrophoresisHaloarchaeaAcidic Membrane Proteinshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Proteins present in the archaeal cell envelope play key roles in a variety of processes necessary for survival in extreme environments. The haloarchaeon Haloferax volcanii is a good model for membrane proteomic studies because its genome sequence is known, it can be genetically manipulated, and a number of studies at the “omics” level have been performed in this organism. This work reports an easy strategy to improve the resolution of acidic membrane proteins from H. volcanii by 2DE. The method is based on the solubilization, delipidation, and salt removal from membrane proteins. Due to the abundance of the S-layer glycoprotein (SLG) in membrane protein extracts, other proteins from the envelope are consequently underrepresented. Thus, a protocol to reduce the amount of the SLG by EDTA treatment was applied and 11 cm narrow range pH (3.9–5.1) IPG strips were used to fractionate the remaining proteins. Using this method, horizontal streaking was substantially decreased and at least 75 defined spots (20% of the predicted membrane proteome within this pI/Mw range) were reproducibly detected. Two of these spots were identified as thermosome subunit 1 and NADH dehydrogenase from H. volcanii, confirming that proteins from the membrane fraction were enriched. Removal of the SLG from membrane protein extracts can be applied to increase protein load for 2DE as well as for other proteomic methods.Fil: Paggi, Roberto Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Gimenez, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: de Castro, Rosana Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; ArgentinaFil: Cesari, Andreina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; ArgentinaWiley VCH Verlag2014-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/12877Paggi, Roberto Alejandro; Gimenez, Maria Ines; de Castro, Rosana Esther; Cesari, Andreina; A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis; Wiley VCH Verlag; Electrophoresis; 35; 24; 12-2014; 3518-35220173-08351522-2683enginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/elps.201400407/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1002/elps.201400407info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:56:03Zoai:ri.conicet.gov.ar:11336/12877instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:56:03.957CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis |
title |
A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis |
spellingShingle |
A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis Paggi, Roberto Alejandro 2d Electrophoresis Haloarchaea Acidic Membrane Proteins |
title_short |
A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis |
title_full |
A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis |
title_fullStr |
A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis |
title_full_unstemmed |
A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis |
title_sort |
A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis |
dc.creator.none.fl_str_mv |
Paggi, Roberto Alejandro Gimenez, Maria Ines de Castro, Rosana Esther Cesari, Andreina |
author |
Paggi, Roberto Alejandro |
author_facet |
Paggi, Roberto Alejandro Gimenez, Maria Ines de Castro, Rosana Esther Cesari, Andreina |
author_role |
author |
author2 |
Gimenez, Maria Ines de Castro, Rosana Esther Cesari, Andreina |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
2d Electrophoresis Haloarchaea Acidic Membrane Proteins |
topic |
2d Electrophoresis Haloarchaea Acidic Membrane Proteins |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Proteins present in the archaeal cell envelope play key roles in a variety of processes necessary for survival in extreme environments. The haloarchaeon Haloferax volcanii is a good model for membrane proteomic studies because its genome sequence is known, it can be genetically manipulated, and a number of studies at the “omics” level have been performed in this organism. This work reports an easy strategy to improve the resolution of acidic membrane proteins from H. volcanii by 2DE. The method is based on the solubilization, delipidation, and salt removal from membrane proteins. Due to the abundance of the S-layer glycoprotein (SLG) in membrane protein extracts, other proteins from the envelope are consequently underrepresented. Thus, a protocol to reduce the amount of the SLG by EDTA treatment was applied and 11 cm narrow range pH (3.9–5.1) IPG strips were used to fractionate the remaining proteins. Using this method, horizontal streaking was substantially decreased and at least 75 defined spots (20% of the predicted membrane proteome within this pI/Mw range) were reproducibly detected. Two of these spots were identified as thermosome subunit 1 and NADH dehydrogenase from H. volcanii, confirming that proteins from the membrane fraction were enriched. Removal of the SLG from membrane protein extracts can be applied to increase protein load for 2DE as well as for other proteomic methods. Fil: Paggi, Roberto Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina Fil: Gimenez, Maria Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina Fil: de Castro, Rosana Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina Fil: Cesari, Andreina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigaciones Biológicas; Argentina. Universidad Nacional de Mar del Plata; Argentina |
description |
Proteins present in the archaeal cell envelope play key roles in a variety of processes necessary for survival in extreme environments. The haloarchaeon Haloferax volcanii is a good model for membrane proteomic studies because its genome sequence is known, it can be genetically manipulated, and a number of studies at the “omics” level have been performed in this organism. This work reports an easy strategy to improve the resolution of acidic membrane proteins from H. volcanii by 2DE. The method is based on the solubilization, delipidation, and salt removal from membrane proteins. Due to the abundance of the S-layer glycoprotein (SLG) in membrane protein extracts, other proteins from the envelope are consequently underrepresented. Thus, a protocol to reduce the amount of the SLG by EDTA treatment was applied and 11 cm narrow range pH (3.9–5.1) IPG strips were used to fractionate the remaining proteins. Using this method, horizontal streaking was substantially decreased and at least 75 defined spots (20% of the predicted membrane proteome within this pI/Mw range) were reproducibly detected. Two of these spots were identified as thermosome subunit 1 and NADH dehydrogenase from H. volcanii, confirming that proteins from the membrane fraction were enriched. Removal of the SLG from membrane protein extracts can be applied to increase protein load for 2DE as well as for other proteomic methods. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12 |
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/11336/12877 Paggi, Roberto Alejandro; Gimenez, Maria Ines; de Castro, Rosana Esther; Cesari, Andreina; A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis; Wiley VCH Verlag; Electrophoresis; 35; 24; 12-2014; 3518-3522 0173-0835 1522-2683 |
url |
http://hdl.handle.net/11336/12877 |
identifier_str_mv |
Paggi, Roberto Alejandro; Gimenez, Maria Ines; de Castro, Rosana Esther; Cesari, Andreina; A simple technique to improve the resolution of membrane acidic proteins of the haloarchaeon Haloferax volcanii by 2D electrophoresis; Wiley VCH Verlag; Electrophoresis; 35; 24; 12-2014; 3518-3522 0173-0835 1522-2683 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/elps.201400407/abstract info:eu-repo/semantics/altIdentifier/doi/10.1002/elps.201400407 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley VCH Verlag |
publisher.none.fl_str_mv |
Wiley VCH Verlag |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844613686454386688 |
score |
13.070432 |