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J. Biol. Chem., Vol. 259, Issue 5, 2840-2844, 03, 1984

Isolation of the structural genes for the alpha and beta subunits of the mitochondrial ATPase from the fission yeast Schizosaccharomyces pombe

M Boutry, A Vassarotti, M Ghislain, M Douglas and A Goffeau

The structural genes for the two major subunits of the mitochondrial ATPase were isolated among genomic clones from the yeast Schizosaccharomyces pombe by transformation and complementation of mutants unable to grow on glycerol and lacking either the alpha or the beta subunits. The plasmid pMa1 containing a 2.3-kilobase genomic insert transformed the mutant A23-13 lacking a detectable alpha subunit. The transformant grew on glycerol and contained an alpha subunit of normal electrophoretic mobility. The plasmid pMa2 containing a 5.4-kilobase genomic insert transformed the mutant B59-1 lacking the beta subunit. The transformant grew on glycerol and contained a beta subunit of normal mobility. The structural gene for the beta ATPase subunit for the fission yeast S. pombe was localized within the pMa2 insert by hybridization to a probe containing the beta ATPase gene from the budding yeast Saccharomyces cerevisiae (Saltzgaber, J., Kunapuli, S., and Douglas, M. G. (1983) J. Biol. Chem. 258, 11465-11470). The mRNAs which hybridized to pMa1 and pMa2 were translated by a reticulocyte lysate into polypeptides of Mr = 59,000 and 54,000, respectively. These genes products reacted with an anti-F1-ATPase serum and therefore correspond most probably to precursors of the alpha and beta subunits.
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