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. 1992 Apr;12(4):1405-11.
doi: 10.1128/mcb.12.4.1405.

Human p53 Inhibits Growth in Schizosaccharomyces Pombe

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Free PMC article

Human p53 Inhibits Growth in Schizosaccharomyces Pombe

J R Bischoff et al. Mol Cell Biol. .
Free PMC article

Abstract

Overexpression of wild-type p53 in mammalian cells blocks growth. We show here that the overexpression of wild-type human p53 in the fission yeast Schizosaccharomyces pombe also blocks growth, whereas the overexpression of mutant forms of p53 does not. The p53 polypeptide is located in the nucleus and is phosphorylated at both the cdc2 site and the casein kinase II site in S. pombe. A new dominant mutation of p53, resulting in the change of a cysteine to an arginine at amino acid residue 141, was identified. The results presented here demonstrate that S. pombe could provide a simple system for studying the mechanism of action of human p53.

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