Molecular cloning of the yeast proteasome PRS2 gene identical to the suppressor gene scl1+ - PubMed (original) (raw)
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- PMID: 1872882
Molecular cloning of the yeast proteasome PRS2 gene identical to the suppressor gene scl1+
D H Lee et al. Biochem Int. 1991 Mar.
Abstract
The YC7-alpha gene encoding a subunit of yeast proteasomes named PRS2 has been isolated and sequenced. Southern blot analysis after electrophoretic separation of yeast chromosomal DNAs showed that the PRS2 gene is located in chromosome VII, unlike the PRS1 gene for subunit YC1, is located on chromosome XV. Surprisingly, the overall structure of the PRS2 gene was found to be identical to that of the suppressor scl1+ gene restoring the SCL1-1 mutation that suppresses crl3 cycloheximide-resistant, temperature-sensitive lethality. The identity of these two genes indicates that the suppressive role of the scl1+ gene product on crl3 mutation could be attributed to proteasomal function.
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