Plant copper chaperones.
Copper chaperones, soluble copper-binding proteins, are essential for ensuring proper distribution of copper to cellular compartments and to proteins requiring copper prosthetic groups. They are found in all eukaryotic organisms. Orthologues of the three copper chaperones characterized in yeast, ATX1, CCS and COX17, are present in Arabidopsis thaliana. Plants are faced with unique challenges to maintain metal homoeostasis, and thus their copper chaperones have evolved by diversifying and gaining additional functions. In this paper we present our current knowledge of copper chaperones in A. thaliana based on the information available from the complete sequence of its genome.
Wintz
H
H
Department of Nutrition and Toxicology, University of California, Berkeley, CA 95720, USA. wintz@uclink.berkeley.edu
Vulpe
C
C
D000595:Amino Acid Sequence; D000818:Animals; D017360:Arabidopsis / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000378:metabolism; D001692:Biological Transport; D002352:Carrier Proteins / Q000378:metabolism*; D027682:Cation Transport Proteins / Q000378:metabolism; D016825:Chlamydomonas reinhardtii / Q000378:metabolism; D003300:Copper / Q000378:metabolism*; D000079922:Copper Transport Proteins; D030562:Databases, Protein; D006801:Humans; D018832:Molecular Chaperones / Q000378:metabolism*; D008969:Molecular Sequence Data; D012441:Saccharomyces cerevisiae / Q000378:metabolism; D029701:Saccharomyces cerevisiae Proteins; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid
D029681:Arabidopsis Proteins; C468565:AtCOX17 protein, Arabidopsis; C114678:CCS protein, human; C491960:CCS1 protein, S cerevisiae; D002352:Carrier Proteins; D027682:Cation Transport Proteins; D000079922:Copper Transport Proteins; D018832:Molecular Chaperones; D029701:Saccharomyces cerevisiae Proteins; D003300:Copper