Regulating levels of centromeric histone H3 (CenH3) variant is crucial for genome stability. Interaction of Psh1, an E3 ligase, with the C terminus of Cse4 has been shown to contribute to its proteolysis. Here, we demonstrate a role for ubiquitination of the N terminus of Cse4 in regulating Cse4 proteolysis for faithful chromosome segregation and a role for Doa1 in ubiquitination of Cse4.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3664860PMC
http://dx.doi.org/10.1534/genetics.113.149898DOI Listing

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