Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity

Autores
Alvarez, Clarisa Ester; Detarsio, Enrique; Moreno, Silvia Margarita; Andreo, Carlos Santiago; Drincovich, Maria Fabiana
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Two highly similar plastidic NADP-malic enzymes (NADP-MEs) are found in the C 4 species maize (Zea mays); one exclusively expressed in the bundle sheath cells (BSCs) and involved in C 4 photosynthesis (ZmC 4-NADP-ME); and the other (ZmnonC 4-NADP-ME) with housekeeping roles. In the present work, these two NADP-MEs were analyzed regarding their redox-dependent activity modulation. The results clearly show that ZmC 4-NADP-ME is the only one modulated by redox status, and that its oxidation produces a conformational change limiting the catalytic process, although inducing higher affinity binding of the substrates. The reversal of ZmC 4-NADP-ME oxidation by chemical reductants suggests the presence of thiol groups able to form disulfide bonds. In order to identify the cysteine residues involved in the activity modulation, site-directed mutagenesis and MALDI-TOF (matrix-assisted laser desorption ionization-time of flight) analysis of ZmC 4-NADP-ME were performed. The results obtained allowed the identification of Cys192, Cys246 (not conserved in ZmnonC 4-NADP-ME), Cys270 and Cys410 as directly or indirectly implicated in ZmC 4-NADP-ME redox modulation. These residues may be involved in forming disulfide bridge(s) or in the modulation of the oxidation of critical residues. Overall, the results indicate that, besides having acquired a high level of expression and localization in BSCs, ZmC 4-NADP-ME displays a particular redox modulation, which may be required to accomplish the C 4 photosynthetic metabolism. Therefore, the present work could provide new insights into the regulatory mechanisms potentially involved in the recruitment of genes for the C 4 pathway during evolution. © 2012 The Author.
Fil: Alvarez, Clarisa Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina
Fil: Detarsio, Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina
Fil: Moreno, Silvia Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmaceuticas. Departamento de Química Biologica; Argentina
Fil: Andreo, Carlos Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina
Fil: Drincovich, Maria Fabiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina
Materia
C 4 PHOTOSYNTHESIS
MAIZE
NADP-MALIC ENZYME
REDOX MODULATION
STRUCTURE-FUNCTION RELATIONSHIP
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/61354
Acceder
id CONICETDig_664b5ace980e5567134177e92de653c3
oai_identifier_str oai:ri.conicet.gov.ar:11336/61354
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activityAlvarez, Clarisa EsterDetarsio, EnriqueMoreno, Silvia MargaritaAndreo, Carlos SantiagoDrincovich, Maria FabianaC 4 PHOTOSYNTHESISMAIZENADP-MALIC ENZYMEREDOX MODULATIONSTRUCTURE-FUNCTION RELATIONSHIPhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Two highly similar plastidic NADP-malic enzymes (NADP-MEs) are found in the C 4 species maize (Zea mays); one exclusively expressed in the bundle sheath cells (BSCs) and involved in C 4 photosynthesis (ZmC 4-NADP-ME); and the other (ZmnonC 4-NADP-ME) with housekeeping roles. In the present work, these two NADP-MEs were analyzed regarding their redox-dependent activity modulation. The results clearly show that ZmC 4-NADP-ME is the only one modulated by redox status, and that its oxidation produces a conformational change limiting the catalytic process, although inducing higher affinity binding of the substrates. The reversal of ZmC 4-NADP-ME oxidation by chemical reductants suggests the presence of thiol groups able to form disulfide bonds. In order to identify the cysteine residues involved in the activity modulation, site-directed mutagenesis and MALDI-TOF (matrix-assisted laser desorption ionization-time of flight) analysis of ZmC 4-NADP-ME were performed. The results obtained allowed the identification of Cys192, Cys246 (not conserved in ZmnonC 4-NADP-ME), Cys270 and Cys410 as directly or indirectly implicated in ZmC 4-NADP-ME redox modulation. These residues may be involved in forming disulfide bridge(s) or in the modulation of the oxidation of critical residues. Overall, the results indicate that, besides having acquired a high level of expression and localization in BSCs, ZmC 4-NADP-ME displays a particular redox modulation, which may be required to accomplish the C 4 photosynthetic metabolism. Therefore, the present work could provide new insights into the regulatory mechanisms potentially involved in the recruitment of genes for the C 4 pathway during evolution. © 2012 The Author.Fil: Alvarez, Clarisa Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; ArgentinaFil: Detarsio, Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; ArgentinaFil: Moreno, Silvia Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmaceuticas. Departamento de Química Biologica; ArgentinaFil: Andreo, Carlos Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; ArgentinaFil: Drincovich, Maria Fabiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; ArgentinaOxford University Press2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/61354Alvarez, Clarisa Ester; Detarsio, Enrique; Moreno, Silvia Margarita; Andreo, Carlos Santiago; Drincovich, Maria Fabiana; Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity; Oxford University Press; Plant And Cell Physiology; 53; 6; 6-2012; 1144-11530032-0781CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/pcp/pcs059info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/pcp/article/53/6/1144/1809330info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:44:53Zoai:ri.conicet.gov.ar:11336/61354instacron: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:34982025-10-15 14:44:54.093CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity
title Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity
spellingShingle Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity
Alvarez, Clarisa Ester
C 4 PHOTOSYNTHESIS
MAIZE
NADP-MALIC ENZYME
REDOX MODULATION
STRUCTURE-FUNCTION RELATIONSHIP
title_short Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity
title_full Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity
title_fullStr Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity
title_full_unstemmed Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity
title_sort Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity
dc.creator.none.fl_str_mv Alvarez, Clarisa Ester
Detarsio, Enrique
Moreno, Silvia Margarita
Andreo, Carlos Santiago
Drincovich, Maria Fabiana
author Alvarez, Clarisa Ester
author_facet Alvarez, Clarisa Ester
Detarsio, Enrique
Moreno, Silvia Margarita
Andreo, Carlos Santiago
Drincovich, Maria Fabiana
author_role author
author2 Detarsio, Enrique
Moreno, Silvia Margarita
Andreo, Carlos Santiago
Drincovich, Maria Fabiana
author2_role author
author
author
author
dc.subject.none.fl_str_mv C 4 PHOTOSYNTHESIS
MAIZE
NADP-MALIC ENZYME
REDOX MODULATION
STRUCTURE-FUNCTION RELATIONSHIP
topic C 4 PHOTOSYNTHESIS
MAIZE
NADP-MALIC ENZYME
REDOX MODULATION
STRUCTURE-FUNCTION RELATIONSHIP
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Two highly similar plastidic NADP-malic enzymes (NADP-MEs) are found in the C 4 species maize (Zea mays); one exclusively expressed in the bundle sheath cells (BSCs) and involved in C 4 photosynthesis (ZmC 4-NADP-ME); and the other (ZmnonC 4-NADP-ME) with housekeeping roles. In the present work, these two NADP-MEs were analyzed regarding their redox-dependent activity modulation. The results clearly show that ZmC 4-NADP-ME is the only one modulated by redox status, and that its oxidation produces a conformational change limiting the catalytic process, although inducing higher affinity binding of the substrates. The reversal of ZmC 4-NADP-ME oxidation by chemical reductants suggests the presence of thiol groups able to form disulfide bonds. In order to identify the cysteine residues involved in the activity modulation, site-directed mutagenesis and MALDI-TOF (matrix-assisted laser desorption ionization-time of flight) analysis of ZmC 4-NADP-ME were performed. The results obtained allowed the identification of Cys192, Cys246 (not conserved in ZmnonC 4-NADP-ME), Cys270 and Cys410 as directly or indirectly implicated in ZmC 4-NADP-ME redox modulation. These residues may be involved in forming disulfide bridge(s) or in the modulation of the oxidation of critical residues. Overall, the results indicate that, besides having acquired a high level of expression and localization in BSCs, ZmC 4-NADP-ME displays a particular redox modulation, which may be required to accomplish the C 4 photosynthetic metabolism. Therefore, the present work could provide new insights into the regulatory mechanisms potentially involved in the recruitment of genes for the C 4 pathway during evolution. © 2012 The Author.
Fil: Alvarez, Clarisa Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina
Fil: Detarsio, Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina
Fil: Moreno, Silvia Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmaceuticas. Departamento de Química Biologica; Argentina
Fil: Andreo, Carlos Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina
Fil: Drincovich, Maria Fabiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina
description Two highly similar plastidic NADP-malic enzymes (NADP-MEs) are found in the C 4 species maize (Zea mays); one exclusively expressed in the bundle sheath cells (BSCs) and involved in C 4 photosynthesis (ZmC 4-NADP-ME); and the other (ZmnonC 4-NADP-ME) with housekeeping roles. In the present work, these two NADP-MEs were analyzed regarding their redox-dependent activity modulation. The results clearly show that ZmC 4-NADP-ME is the only one modulated by redox status, and that its oxidation produces a conformational change limiting the catalytic process, although inducing higher affinity binding of the substrates. The reversal of ZmC 4-NADP-ME oxidation by chemical reductants suggests the presence of thiol groups able to form disulfide bonds. In order to identify the cysteine residues involved in the activity modulation, site-directed mutagenesis and MALDI-TOF (matrix-assisted laser desorption ionization-time of flight) analysis of ZmC 4-NADP-ME were performed. The results obtained allowed the identification of Cys192, Cys246 (not conserved in ZmnonC 4-NADP-ME), Cys270 and Cys410 as directly or indirectly implicated in ZmC 4-NADP-ME redox modulation. These residues may be involved in forming disulfide bridge(s) or in the modulation of the oxidation of critical residues. Overall, the results indicate that, besides having acquired a high level of expression and localization in BSCs, ZmC 4-NADP-ME displays a particular redox modulation, which may be required to accomplish the C 4 photosynthetic metabolism. Therefore, the present work could provide new insights into the regulatory mechanisms potentially involved in the recruitment of genes for the C 4 pathway during evolution. © 2012 The Author.
publishDate 2012
dc.date.none.fl_str_mv 2012-06
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/11336/61354
Alvarez, Clarisa Ester; Detarsio, Enrique; Moreno, Silvia Margarita; Andreo, Carlos Santiago; Drincovich, Maria Fabiana; Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity; Oxford University Press; Plant And Cell Physiology; 53; 6; 6-2012; 1144-1153
0032-0781
CONICET Digital
CONICET
url http://hdl.handle.net/11336/61354
identifier_str_mv Alvarez, Clarisa Ester; Detarsio, Enrique; Moreno, Silvia Margarita; Andreo, Carlos Santiago; Drincovich, Maria Fabiana; Functional characterization of residues involved in redox modulation of maize photosynthetic NADP-Malic enzyme activity; Oxford University Press; Plant And Cell Physiology; 53; 6; 6-2012; 1144-1153
0032-0781
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/pcp/pcs059
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/pcp/article/53/6/1144/1809330
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
application/pdf
application/pdf
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dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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
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