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Yeast. 1994 Apr;10 Suppl A:S47-62.

The sequence of a 32,420 bp segment located on the right arm of chromosome II from Saccharomyces cerevisiae.

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  • 1Biotechnological Institute, Lyngby, Denmark.


The sequence of a 32,420 bp segment of Saccharomyces cerevisiae chromosome II has been deduced. The sequence data revealed 19 potential new genes covering 83.5% of the sequence. Four genes had already been cloned and sequenced: part of RIF1, DPB3, MRP-L27 and SNF5. Besides these four genes, 15 open reading frames (ORFs) of at least 100 amino acids encoding potential new genes were identified. Two of these ORFs are overlapping and a third is located within another ORF. The putative gene product of ORF YBR2039 was homologous to the group of uncoupling proteins involved in the mitochondrial energy transfer system. We propose a remapping of the MRP-L27 gene encoding the mitoribosomal protein YmL27 as it previously has been mapped on chromosome X. The ORF YBR2020 has a strong homology with a 31.9% identity in a 473 amino acid region to the yeast gene SEC61, suggesting that YBR2020 is a new gene encoding a protein involved in translocation of proteins in the yeast cell. Six of the potential genes do not exhibit any significant homology to previously sequenced genes as predicted in the Fast A analysis.

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