SUMO-targeted ubiquitin ligase (STUbL) Slx5 regulates proteolysis of centromeric histone H3 variant Cse4 and prevents its mislocalization to euchromatin

Kentaro Ohkuni,Yoshimitsu Takahashi,Alyona Fulp,Josh Lawrimore,W. Au,Nagesh Pasupala,Reuben Levy-Myers,Jack Warren,A. Strunnikov,R. Baker,Oliver Kerscher,K. Bloom,M. Basrai

Published 2016 in Molecular Biology of the Cell

ABSTRACT

A new posttranslational modification is found of centromeric histone H3 variant Cse4. Cse4 is sumoylated by E3 ligases Siz1 and Siz2 and ubiquitinated by Slx5, a Sumo-targeted ubiquitin ligase. Slx5 regulates ubiquitin-mediated proteolysis of Cse4 and prevents it from being mislocalized under normal physiological conditions.

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