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Arabidopsis thaliana Hcc1 is a Sco-like metallochaperonefor Cu A assembly in Cytochrome c Oxidase

dc.citation.titleThe FEBS Journal
dc.citation.volume287
dc.creatorLlases, María Eugenia
dc.creatorLisa, María Natalia
dc.creatorMorgada, Marcos Nicolás
dc.creatorGiannini, Estefanía
dc.creatorAlzari, Pedro M.
dc.creatorVila, Alejandro J.
dc.date.accessioned2024-09-13T16:27:48Z
dc.date.available2024-09-13T16:27:48Z
dc.date.issued2020-12
dc.description.abstractThe assembly of the CuA site in Cytochrome c Oxidase (COX) is a criticalstep for aerobic respiration in COX-dependent organisms. Several geneproducts have been associated with the assembly of this copper site, themost conserved of them belonging to the Sco family of proteins, whichhave been shown to perform different roles in different organisms. Plantsexpress two orthologs of Sco proteins: Hcc1 and Hcc2. Hcc1 is known tobe essential for plant development and for COX maturation, but its precisefunction has not been addressed until now. Here, we report the biochemi-cal, structural and functional characterization of Arabidopsis thaliana Hcc1protein (here renamed Sco1). We solved the crystal structure of the Cu+1-bound soluble domain of this protein, revealing a tri coordinated environ-ment involving a CxxxCxnH motif. We show that AtSco1 is able to workas a copper metallochaperone, inserting two Cu+1 ions into the CuA site ina model of CoxII. We also show that AtSco1 does not act as a thiol-disul-fide oxido-reductase. Overall, this information sheds new light on the bio-chemistry of Sco proteins, highlighting the diversity of functions amongthem despite their high structural similarities.
dc.description.filFil: Llases, María Eugenia. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina.
dc.description.filFil: Lisa, María Natalia. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina.
dc.description.filFil: Lisa, María Natalia. Plataforma de Biología Estructural y Metabolomica (PLABEM); Argentina.
dc.description.filFil: Morgada, Marcos Nicolás. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina.
dc.description.filFil: Morgada, Marcos Nicolás. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Área Biofísica. Departamento de Química Biológica; Argentina.
dc.description.filFil: Giannini, Estefanía. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina.
dc.description.filFil: Alzari, Pedro M. Universite Paris Diderot. Institut Pasteur. Unite de Microbiologie Structurale; France.
dc.description.filFil: Vila, Alejandro J. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina.
dc.description.filFil: Vila, Alejandro J. Plataforma de Biología Estructural y Metabolomica (PLABEM); Argentina.
dc.description.filFil: Vila, Alejandro J. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Área Biofísica. Departamento de Química Biológica; Argentina.
dc.description.sponsorshipAgencia Nacional de Promoción Científica y Tecnológica: PICT 2012‐1285
dc.format.extent749-762
dc.identifier.issn1742-4658
dc.identifier.issn1742-464X
dc.identifier.urihttps://hdl.handle.net/2133/27800
dc.language.isoen
dc.publisherWiley
dc.rightsopenAccess
dc.rights.holderFederation of European Biochemical Societies
dc.rights.holderUniversidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas
dc.rights.textAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectCopper
dc.subjectCu A
dc.subjectCytochrome-c-Oxidase
dc.subjectMetallochaperone
dc.subjectSco
dc.titleArabidopsis thaliana Hcc1 is a Sco-like metallochaperonefor Cu A assembly in Cytochrome c Oxidase
dc.typearticulo
dc.type.collectionarticulo
dc.type.versionpublishedVersion

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