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Most cell types must reach a critical size before they are able to divide. In his Perspective, Sudbery discusses new work (Jorgensen et al.) that identifies a number of proteins, including some that are important for ribosome biogenesis, that connect cell size and commitment to cell division in the budding yeast.
The author is in the Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, S10 2TN, UK. E-mail: p.sudbery{at}sheffield.ac.uk
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