Eukaryotic Cell
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Eukaryotic Cell, June 2002, p. 491-494, Vol. 1, No. 3
1535-9778/02/$04.00+0     DOI: 10.1128/EC.1.3.491-494.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Rub1p Processing by Yuh1p Is Required for Wild-Type Levels of Rub1p Conjugation to Cdc53p

Bolan Linghu,1 Judy Callis,2 and Mark G. Goebl1*

Department of Biochemistry and Molecular Biology, Indiana University School of Medicine and the Walther Oncology Center, Indianapolis, Indiana 46202,1 Section of Molecular and Cellular Biology, University of California—Davis, Davis, California 956162

Received 21 December 2001/ Accepted 13 March 2002

In Saccharomyces cerevisiae, Rub1p, like ubiquitin, is conjugated to proteins. Before protein conjugation, the carboxyl-terminal asparagine residue of Rub1p is removed. Rub1p conjugation is dependent on the carboxyl-terminal processing enzyme Yuh1p, whereas Rub1p lacking the asparagine residue is conjugated without Yuh1p. Thus, Yuh1p is the major processing enzyme for Rub1p.

* Corresponding author. Mailing address: Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, 635 Barnhill Dr., Indianapolis, IN 46202. Phone: (317) 274-2055. Fax: (317) 274-4686. E-mail: mgoebl{at}iupui.edu.

Eukaryotic Cell, June 2002, p. 491-494, Vol. 1, No. 3
1535-9778/02/$04.00+0     DOI: 10.1128/EC.1.3.491-494.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.



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