Atp11p and Atp12p are chaperones for F(1)-ATPase biogenesis in mitochondria.
The bioenergetic needs of aerobic cells are met principally through the action of the F(1)F(0) ATP synthase, which catalyzes ATP synthesis during oxidative phosphorylation. The catalytic unit of the enzyme (F(1)) is a multimeric protein of the subunit composition alpha(3)beta(3)(gamma)(delta) epsilon. Our work, which employs the yeast Saccharomyces cerevisiae as a model system for studies of mitochondrial function, has provided evidence that assembly of the mitochondrial alpha and beta subunits into the F(1) oligomer requires two molecular chaperone proteins called Atp11p and Atp12p. Comprehensive knowledge of Atp11p and Atp12p activities in mitochondria bears relevance to human physiology and disease as these chaperone actions are now known to exist in mitochondria of human cells.
Department of Surgery, Wayne State University School of Medicine, Detroit, MI 48201, USA. sackerm@med.wayne.edu
Sharon H
SH
Ackerman
D000595:Amino Acid Sequence; D001665:Binding Sites; D018833:Chaperonins; D018076:DNA, Complementary / Q000302:isolation & purification; D005656:Fungal Proteins / Q000737:chemistry / Q000378:metabolism*; D006801:Humans; D057927:Hydrophobic and Hydrophilic Interactions; D008928:Mitochondria / Q000201:enzymology*; D024101:Mitochondrial Proteins; D025261:Mitochondrial Proton-Translocating ATPases; D018832:Molecular Chaperones / Q000378:metabolism; D008969:Molecular Sequence Data; D017434:Protein Structure, Tertiary; D006180:Proton-Translocating ATPases / Q000096:biosynthesis* / Q000737:chemistry / Q000378:metabolism*; D029701:Saccharomyces cerevisiae Proteins; D029702:Schizosaccharomyces pombe Proteins; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D015003:Yeasts
C110382:ATP12 protein, S cerevisiae; C434343:Atp11 protein, S pombe; D018076:DNA, Complementary; D005656:Fungal Proteins; D024101:Mitochondrial Proteins; D018832:Molecular Chaperones; D029701:Saccharomyces cerevisiae Proteins; D029702:Schizosaccharomyces pombe Proteins; D018833:Chaperonins; C484671:ATPAF2 protein, human; D025261:Mitochondrial Proton-Translocating ATPases; D006180:Proton-Translocating ATPases