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. 1991 Jan;11(1):154–165. doi: 10.1128/mcb.11.1.154

In vivo genomic footprint of a yeast centromere.

L Densmore 1, W E Payne 1, M Fitzgerald-Hayes 1
PMCID: PMC359605  PMID: 1986217

Abstract

We have used in vivo genomic footprinting to investigate the protein-DNA interactions within the conserved DNA elements (CDEI, CDEII, and CDEIII) in the centromere from chromosome III of the yeast Saccharomyces cerevisiae. The in vivo footprint pattern obtained from wild-type cells shows that some guanines within the centromere DNA are protected from methylation by dimethyl sulfate. These results are consistent with studies demonstrating that yeast cells contain sequence-specific centromere DNA-binding proteins. Our in vivo experiments on chromosomes with mutant centromeres show that some mutations which affect chromosome segregation also alter the footprint pattern caused by proteins bound to the centromere DNA. The results of this study provide the first fine-structure map of proteins bound to centromere DNA in living yeast cells and suggest a direct correlation between these protein-DNA interactions and centromere function.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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