Summary
Genes coding for the 40 kilodaltons (kDa), 17-kDa, 14-kDa and 11-kDa subunits of the ubiquinol-cytochrome c reductase in yeast are present in single copies in the haploid genome. We have mapped each gene to a unique genomic environment and demonstrate that integration of cloned segments into nuclear DNA by homologous crossing-over with the endogenous gene results in the replacement of the corresponding chromosomal restriction fragment by fragments of predicted sizes. Chromosomal mapping, carried out by the procedure of Falco and Botstein 1983, indicates that the gene for the 17-kDa subunit lies on chromosome VI and that for the 11-kDa subunit on chromosome XII.
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Communicated by F. Kandewitz
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Van Loon, A.P.G.M., Vijn, R.J., De Groot, R.J. et al. Nuclear genes coding for four subunits of the yeast ubiquinol-cytochrome c reductase complex are present in single copies in the haploid genome and at least two of these are located on different chromosomes. Mol Gen Genet 197, 219–224 (1984). https://doi.org/10.1007/BF00330966
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DOI: https://doi.org/10.1007/BF00330966