Reactions of peroxynitrite in the mitochondrial matrix
- Autores
- Valdez, Laura Batriz; Alvarez, Silvia; Lores Arnaiz, Silvia; Schöpfer, Francisco; Carreras, Maria Cecilia; Poderoso, Juan José; Boveris, Alberto Antonio
- Año de publicación
- 2000
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Superoxide radical (O2 -) and nitric oxide (NO) produced at the mitochondrial inner membrane react to form peroxynitrite (ONOO-) in the mitochondrial matrix. Intramitochondrial ONOO- effectively reacts with a few biomolecules according to reaction constants and intramitochondrial concentrations. The second-order reaction constants (in M-1 s-1) of ONOO- with NADH (233 ± 27), ubiquinol-0 (485 ± 54) and GSH (183 ± 12) were determined fluorometrically by a simple competition assay of product formation. The oxidation of the components of the mitochondrial matrix by ONOO- was also followed in the presence of CO2, to assess the reactivity of the nitrosoperoxocarboxylate adduct (ONOOCO2 -) towards the same reductants. The ratio of product formation was about similar both in the presence of 2.5 mM CO2 and in air-equilibrated conditions. Liver submitochondrial particles supplemented with 0.25-2 μM ONOO- showed a O2 - production that indicated ubisemiquinone formation and autooxidation. The nitration of mitochondrial proteins produced after addition of 200 μM ONOO- was observed by Western blot analysis. Protein nitration was prevented by the addition of 50-200 μM ubiquinol-0 or GSH. An intramitochondrial steady state concentration of about 2 nM ONOO- was calculated, taking into account the rate constants and concentrations of ONOO- coreactants. (C) 2000 Elsevier Science Inc.
Fil: Valdez, Laura Batriz. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina
Fil: Alvarez, Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina
Fil: Lores Arnaiz, Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina
Fil: Schöpfer, Francisco. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; Argentina
Fil: Carreras, Maria Cecilia. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Poderoso, Juan José. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Boveris, Alberto Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina - Materia
-
Free Radicals
Gsh Oxidation
Mitochondria
Mitochondrial Protein Nitration
Nadh-Oxidation
Peroxynitrite
Superoxide Production
Ubiquinol Oxidation - 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:11336/39159
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Reactions of peroxynitrite in the mitochondrial matrixValdez, Laura BatrizAlvarez, SilviaLores Arnaiz, SilviaSchöpfer, FranciscoCarreras, Maria CeciliaPoderoso, Juan JoséBoveris, Alberto AntonioFree RadicalsGsh OxidationMitochondriaMitochondrial Protein NitrationNadh-OxidationPeroxynitriteSuperoxide ProductionUbiquinol Oxidationhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Superoxide radical (O2 -) and nitric oxide (NO) produced at the mitochondrial inner membrane react to form peroxynitrite (ONOO-) in the mitochondrial matrix. Intramitochondrial ONOO- effectively reacts with a few biomolecules according to reaction constants and intramitochondrial concentrations. The second-order reaction constants (in M-1 s-1) of ONOO- with NADH (233 ± 27), ubiquinol-0 (485 ± 54) and GSH (183 ± 12) were determined fluorometrically by a simple competition assay of product formation. The oxidation of the components of the mitochondrial matrix by ONOO- was also followed in the presence of CO2, to assess the reactivity of the nitrosoperoxocarboxylate adduct (ONOOCO2 -) towards the same reductants. The ratio of product formation was about similar both in the presence of 2.5 mM CO2 and in air-equilibrated conditions. Liver submitochondrial particles supplemented with 0.25-2 μM ONOO- showed a O2 - production that indicated ubisemiquinone formation and autooxidation. The nitration of mitochondrial proteins produced after addition of 200 μM ONOO- was observed by Western blot analysis. Protein nitration was prevented by the addition of 50-200 μM ubiquinol-0 or GSH. An intramitochondrial steady state concentration of about 2 nM ONOO- was calculated, taking into account the rate constants and concentrations of ONOO- coreactants. (C) 2000 Elsevier Science Inc.Fil: Valdez, Laura Batriz. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; ArgentinaFil: Alvarez, Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; ArgentinaFil: Lores Arnaiz, Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; ArgentinaFil: Schöpfer, Francisco. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; ArgentinaFil: Carreras, Maria Cecilia. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Poderoso, Juan José. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Boveris, Alberto Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; ArgentinaElsevier Science Inc2000-08info: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/11336/39159Valdez, Laura Batriz; Alvarez, Silvia; Lores Arnaiz, Silvia; Schöpfer, Francisco; Carreras, Maria Cecilia; et al.; Reactions of peroxynitrite in the mitochondrial matrix; Elsevier Science Inc; Free Radical Biology and Medicine; 29; 3-4; 8-2000; 349-3560891-5849CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0891-5849(00)00301-4info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0891584900003014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:21:42Zoai:ri.conicet.gov.ar:11336/39159instacron: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 10:21:43.157CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Reactions of peroxynitrite in the mitochondrial matrix |
title |
Reactions of peroxynitrite in the mitochondrial matrix |
spellingShingle |
Reactions of peroxynitrite in the mitochondrial matrix Valdez, Laura Batriz Free Radicals Gsh Oxidation Mitochondria Mitochondrial Protein Nitration Nadh-Oxidation Peroxynitrite Superoxide Production Ubiquinol Oxidation |
title_short |
Reactions of peroxynitrite in the mitochondrial matrix |
title_full |
Reactions of peroxynitrite in the mitochondrial matrix |
title_fullStr |
Reactions of peroxynitrite in the mitochondrial matrix |
title_full_unstemmed |
Reactions of peroxynitrite in the mitochondrial matrix |
title_sort |
Reactions of peroxynitrite in the mitochondrial matrix |
dc.creator.none.fl_str_mv |
Valdez, Laura Batriz Alvarez, Silvia Lores Arnaiz, Silvia Schöpfer, Francisco Carreras, Maria Cecilia Poderoso, Juan José Boveris, Alberto Antonio |
author |
Valdez, Laura Batriz |
author_facet |
Valdez, Laura Batriz Alvarez, Silvia Lores Arnaiz, Silvia Schöpfer, Francisco Carreras, Maria Cecilia Poderoso, Juan José Boveris, Alberto Antonio |
author_role |
author |
author2 |
Alvarez, Silvia Lores Arnaiz, Silvia Schöpfer, Francisco Carreras, Maria Cecilia Poderoso, Juan José Boveris, Alberto Antonio |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Free Radicals Gsh Oxidation Mitochondria Mitochondrial Protein Nitration Nadh-Oxidation Peroxynitrite Superoxide Production Ubiquinol Oxidation |
topic |
Free Radicals Gsh Oxidation Mitochondria Mitochondrial Protein Nitration Nadh-Oxidation Peroxynitrite Superoxide Production Ubiquinol Oxidation |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Superoxide radical (O2 -) and nitric oxide (NO) produced at the mitochondrial inner membrane react to form peroxynitrite (ONOO-) in the mitochondrial matrix. Intramitochondrial ONOO- effectively reacts with a few biomolecules according to reaction constants and intramitochondrial concentrations. The second-order reaction constants (in M-1 s-1) of ONOO- with NADH (233 ± 27), ubiquinol-0 (485 ± 54) and GSH (183 ± 12) were determined fluorometrically by a simple competition assay of product formation. The oxidation of the components of the mitochondrial matrix by ONOO- was also followed in the presence of CO2, to assess the reactivity of the nitrosoperoxocarboxylate adduct (ONOOCO2 -) towards the same reductants. The ratio of product formation was about similar both in the presence of 2.5 mM CO2 and in air-equilibrated conditions. Liver submitochondrial particles supplemented with 0.25-2 μM ONOO- showed a O2 - production that indicated ubisemiquinone formation and autooxidation. The nitration of mitochondrial proteins produced after addition of 200 μM ONOO- was observed by Western blot analysis. Protein nitration was prevented by the addition of 50-200 μM ubiquinol-0 or GSH. An intramitochondrial steady state concentration of about 2 nM ONOO- was calculated, taking into account the rate constants and concentrations of ONOO- coreactants. (C) 2000 Elsevier Science Inc. Fil: Valdez, Laura Batriz. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina Fil: Alvarez, Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina Fil: Lores Arnaiz, Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Bioquímica y Medicina Molecular. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Bioquímica y Medicina Molecular; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina Fil: Schöpfer, Francisco. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; Argentina Fil: Carreras, Maria Cecilia. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Poderoso, Juan José. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín. Laboratorio de Metabolismo del Oxígeno; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Boveris, Alberto Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Analítica y Fisicoquímica; Argentina |
description |
Superoxide radical (O2 -) and nitric oxide (NO) produced at the mitochondrial inner membrane react to form peroxynitrite (ONOO-) in the mitochondrial matrix. Intramitochondrial ONOO- effectively reacts with a few biomolecules according to reaction constants and intramitochondrial concentrations. The second-order reaction constants (in M-1 s-1) of ONOO- with NADH (233 ± 27), ubiquinol-0 (485 ± 54) and GSH (183 ± 12) were determined fluorometrically by a simple competition assay of product formation. The oxidation of the components of the mitochondrial matrix by ONOO- was also followed in the presence of CO2, to assess the reactivity of the nitrosoperoxocarboxylate adduct (ONOOCO2 -) towards the same reductants. The ratio of product formation was about similar both in the presence of 2.5 mM CO2 and in air-equilibrated conditions. Liver submitochondrial particles supplemented with 0.25-2 μM ONOO- showed a O2 - production that indicated ubisemiquinone formation and autooxidation. The nitration of mitochondrial proteins produced after addition of 200 μM ONOO- was observed by Western blot analysis. Protein nitration was prevented by the addition of 50-200 μM ubiquinol-0 or GSH. An intramitochondrial steady state concentration of about 2 nM ONOO- was calculated, taking into account the rate constants and concentrations of ONOO- coreactants. (C) 2000 Elsevier Science Inc. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-08 |
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/11336/39159 Valdez, Laura Batriz; Alvarez, Silvia; Lores Arnaiz, Silvia; Schöpfer, Francisco; Carreras, Maria Cecilia; et al.; Reactions of peroxynitrite in the mitochondrial matrix; Elsevier Science Inc; Free Radical Biology and Medicine; 29; 3-4; 8-2000; 349-356 0891-5849 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/39159 |
identifier_str_mv |
Valdez, Laura Batriz; Alvarez, Silvia; Lores Arnaiz, Silvia; Schöpfer, Francisco; Carreras, Maria Cecilia; et al.; Reactions of peroxynitrite in the mitochondrial matrix; Elsevier Science Inc; Free Radical Biology and Medicine; 29; 3-4; 8-2000; 349-356 0891-5849 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0891-5849(00)00301-4 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0891584900003014 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science Inc |
publisher.none.fl_str_mv |
Elsevier Science Inc |
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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1844614206379261952 |
score |
13.070432 |