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Yeast. 1997 Mar 30;13(4):357-63.

DNA sequence analysis of a 23,002 bp DNA fragment of the right arm of Saccharomyces cerevisiae chromosome VII.

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  • 1Departamento de Microbiología II, Facultad de Farmacia, Universidad Complutense, Madrid, Spain.


We report the sequence of a 23,002 bp fragment located on the right arm of Saccharomyces cerevisiae chromosome VII. Analysis of this region revealed 14 complete open reading frames (ORFs) wit more than 300 base pairs. Six of them correspond to previously known genes. G7164 is the QCR9 gene coding for subunit 9 of the cytochrome c reductase; G7168 is UBR1, encoding an ubiquitin protein ligase; G7522 is the TYS1 gene, which encodes for the tyrosyl tRNA synthetase; G7526 is TFG1, the gene coding for the RNA polymerase transcription initiation factor TFIIF (factor G); G7538 is the gene HGH1 which encodes a protein related to the mammalian HMG1 and HMG2 proteins. G7542 is the BUB1 gene which encodes a ser/thr protein kinase involved in spindle assembly during the cell cycle. One of the ORFs, G7553, shares significant homologies with the gene UTR2 from S. cerevisiae. None of the seven remaining ORFs shows similarity to any of the sequences within the public databases. Three ORFs are internal ORFs of the above-described known genes, and two small ORFs are completely contained in larger ORFs on the complementary strand, and therefore probably do not correspond to real genes. This region also contains three genes specifying tRNAs for Leu, Lys and Trp, and several LTR elements.

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