6533b7dcfe1ef96bd127355b

RESEARCH PRODUCT

AtCCS is a functional homolog of the yeast copper chaperone Ccs1/Lys7

Sergi PuigJared R. BodeckerLola PeñarrubiaSalah E. Abdel-ghanyMarinus PilonJason L. BurkheadNuria Andrés-colásKathryn A. Gogolin

subject

0106 biological sciencesCu/Zn superoxide dismutaseChloroplastsSaccharomyces cerevisiae ProteinsMolecular Sequence DataArabidopsisBiophysicsSaccharomyces cerevisiaeMetallo chaperoneChloroplastModels Biological01 natural sciencesBiochemistryGreen fluorescent proteinSuperoxide dismutase03 medical and health sciencesDownregulation and upregulationGene Expression Regulation PlantStructural BiologyOrganelleGeneticsAmino Acid SequenceRNA MessengerMolecular BiologyGene030304 developmental biology0303 health sciencesbiologyArabidopsis ProteinsGene Expression ProfilingGenetic Complementation TestCell BiologyYeastChloroplastProtein TransportBiochemistryChaperone (protein)Mutationbiology.proteinSequence AlignmentCopperMolecular Chaperones010606 plant biology & botany

description

AbstractIn plant chloroplasts two superoxide dismutase (SOD) activities occur, FeSOD and Cu/ZnSOD, with reciprocal regulation in response to copper availability. This system presents a unique model to study the regulation of metal-cofactor delivery to an organelle. The Arabidopsis thaliana gene AtCCS encodes a functional homolog to yeast Ccs1p/Lys7p, a copper chaperone for SOD. The AtCCS protein was localized to chloroplasts where it may supply copper to the stromal Cu/ZnSOD. AtCCS mRNA expression levels are upregulated in response to Cu-feeding and senescence. We propose that AtCCS expression is regulated to allow the most optimal use of Cu for photosynthesis.

yearjournalcountryeditionlanguage
2005-01-10FEBS Letters
https://doi.org/10.1016/j.febslet.2005.03.025