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The Saccharomyces Cerevisiae RNase Mitochondrial RNA Processing is Critical for Cell Cycle Progression at the End of Mitosis

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Journal Genetics
Specialty Genetics
Date 2002 Jul 24
PMID 12136008
Citations 41
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Abstract

We have identified a cell cycle delay in Saccharomyces cerevisiae RNase MRP mutants. Mutants delay with large budded cells, dumbbell-shaped nuclei, and extended spindles characteristic of "exit from mitosis" mutants. In accord with this, a RNase MRP mutation can be suppressed by overexpressing the polo-like kinase CDC5 or by deleting the B-type cyclin CLB1, without restoring the MRP-dependent rRNA-processing step. In addition, we identified a series of genetic interactions between RNase MRP mutations and mutations in CDC5, CDC14, CDC15, CLB2, and CLB5. As in most "exit from mitosis" mutants, levels of the Clb2 cyclin were increased. The buildup of Clb2 protein is not the result of a defect in the release of the Cdc14 phosphatase from the nucleolus, but rather the result of an increase in CLB2 mRNA levels. These results indicate a clear role of RNase MRP in cell cycle progression at the end of mitosis. Conservation of this function in humans may explain many of the pleiotropic phenotypes of cartilage hair hypoplasia.

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References
1.
Cai T, Reilly T, Cerio M, Schmitt M . Mutagenesis of SNM1, which encodes a protein component of the yeast RNase MRP, reveals a role for this ribonucleoprotein endoribonuclease in plasmid segregation. Mol Cell Biol. 1999; 19(11):7857-69. PMC: 84863. DOI: 10.1128/MCB.19.11.7857. View

2.
Visintin R, Hwang E, Amon A . Cfi1 prevents premature exit from mitosis by anchoring Cdc14 phosphatase in the nucleolus. Nature. 1999; 398(6730):818-23. DOI: 10.1038/19775. View

3.
Reimer G, Raska I, Scheer U, Tan E . Immunolocalization of 7-2-ribonucleoprotein in the granular component of the nucleolus. Exp Cell Res. 1988; 176(1):117-28. DOI: 10.1016/0014-4827(88)90126-7. View

4.
Schmitt M, Brown T, Trumpower B . A rapid and simple method for preparation of RNA from Saccharomyces cerevisiae. Nucleic Acids Res. 1990; 18(10):3091-2. PMC: 330876. DOI: 10.1093/nar/18.10.3091. View

5.
Sikorski R, Boeke J . In vitro mutagenesis and plasmid shuffling: from cloned gene to mutant yeast. Methods Enzymol. 1991; 194:302-18. DOI: 10.1016/0076-6879(91)94023-6. View