We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRatchets and clocks: the cell cycle, ubiquitylation and protein turnover.AuthorsReed, Steven IPublicationNature reviews. Molecular cell biology, 2003, Vol 4, Issue 11, p855ISSN1471-0072Publication typeJournal ArticleDOI10.1038/nrm1246