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Yeast. 1993 Feb;9(2):189-99.

The complete sequence of a 19,482 bp segment located on the right arm of chromosome II from Saccharomyces cerevisiae.

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  • 1Laboratoire de Biologie Moléculaire et de Séquençage, Université de Bordeaux II, France.


We report here the sequence of a 19,482 bp DNA segment of chromosome II of Saccharomyces cerevisiae. The fragment contains 16 open reading frames (ORFs) covering 74% of the sequence. Four predicted products present homology with known proteins. The ORF YBR1732 exhibits a strong homology to serine hydroxymethyl transferase; the best score is 53.1% identity in 458 amino acids overlap with the serine hydroxymethyl transferase from rabbit liver. YBR1724, which shows homology with riboflavin synthase of Bacillus subtilis, is probably the RIB5 gene implied in riboflavine synthesis and mapped in this region. YBR1733 is homologous to rab protein and YBR1728 is presumably a GTPase activating protein.

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