Deciphering the number and location of active sites in the monomeric glyoxalase I of Zea mays
dc.citation.title | FEBS Journal | es |
dc.citation.volume | 286 | |
dc.creator | González, Javier M. | |
dc.creator | Agostini, Romina B. | |
dc.creator | Álvarez, Clarisa Ester | |
dc.creator | Klinke, Sebastián | |
dc.creator | Andreo, Carlos Santiago | |
dc.creator | Campos Bermúdez, Valeria Alina | |
dc.date.accessioned | 2022-04-21T17:50:02Z | |
dc.date.available | 2022-04-21T17:50:02Z | |
dc.date.issued | 2019-04-16 | |
dc.description | Detoxification of methylglyoxal, a toxic by-product of central sugar metabolism, is a major issue for all forms of life. The glyoxalase pathway evolved to effectively convert methylglyoxal into D-lactate via a glutathione hemithioacetal intermediate. Recently, we have shown that the monomeric glyoxalase I from maize exhibits a symmetric fold with two cavities, potentially harboring two active sites, in analogy with homodimeric enzyme surrogates. Here we confirm that only one of the two cavities exhibits glyoxalase I activity and show that it adopts a tunnel-shaped structure upon substrate binding. Such conformational change gives rise to independent binding sites for glutathione and methylglyoxal in the same active site, with important implications for the molecular reaction mechanism, which has been a matter of debate for several decades. | es |
dc.description.fil | Fil: González, Javier M. Universidad Nacional de Santiago del Estero. Instituto de Bionanotecnología del NOA (INBIONATEC-CONICET); Argentina. | es |
dc.description.fil | Fil: Agostini, Romina B. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET); Argentina. | es |
dc.description.fil | Fil: Álvarez, Clarisa Ester. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET); Argentina. | es |
dc.description.fil | Fil: Klinke, Sebastián. Plataforma Argentina de Biología Estructural y Metabolómica. Fundación Instituto Leloi. Instituto de Investigaciones Bioquímicas de Buenos Aires (IIBBA-CONICET); Argentina. | es |
dc.description.fil | Fil: Andreo, Carlos Santiago. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET); Argentina. | es |
dc.description.fil | Fil: Campos Bermúdez, Valeria Alina. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET); Argentina. | es |
dc.description.sponsorship | Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) | |
dc.description.sponsorship | Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT): PICT 2010-0358 | |
dc.format | application/pdf | |
dc.format.extent | 3255-3271 | es |
dc.identifier.issn | 1742-4658 | es |
dc.identifier.uri | http://hdl.handle.net/2133/23461 | |
dc.language.iso | eng | es |
dc.publisher | Wiley | es |
dc.relation.publisherversion | https://febs.onlinelibrary.wiley.com/doi/10.1111/febs.14855 | |
dc.relation.publisherversion | https://doi.org/10.1111/febs.14855 | |
dc.rights | openAccess | es |
dc.rights.holder | Federation of European Biochemical Societies | es |
dc.rights.text | Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | es |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-sa/4.0/ | * |
dc.subject | Glyoxalase I | es |
dc.subject | Hemithioacetal | es |
dc.subject | Maize | es |
dc.subject | Methylglyoxal | es |
dc.subject | Protein tunnel | es |
dc.title | Deciphering the number and location of active sites in the monomeric glyoxalase I of Zea mays | es |
dc.type | publishedVersion | |
dc.type | article | |
dc.type | artículo | |
dc.type.collection | articulo | |
dc.type.version | publishedVersion |
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