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Depletion of yeast ribosomal proteins L16 or rp59 disrupts ribosome assembly

By Michelle Moritz, A G. Paulovich, Yi-fang Tsay and John L. Woolford


Abstract. Two strains of Saccharomyces cerevisiae were constructed that are conditional for synthesis of the 60S ribosomal subunit protein, L16, or the 40S ribosomal subunit protein, rp59. These strains were used to determine the effects of depriving cells of either of these ribosomal proteins on ribosome assembly and on the synthesis and stability of other ribosomal proteins and ribosomal RNAs. Termination of synthesis of either protein leads to diminished accumulation of the subunit into which it normally assembles. Depletion of L16 or rp59 has no effect on synthesis of most other ribosomal proteins or ribo-somal RNAs. However, most ribosomal proteins and ribosomal RNAs that are components of the same subunit as L16 or rp59 are rapidly degraded upo

Year: 1990
DOI identifier: 10.1083/jcb.111.6.2261
OAI identifier: oai:CiteSeerX.psu:
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