doi: 10.1242/10.1242/jcs.00460
Signal pathway integration in the switch from the mitotic cell cycle to meiosis in yeast
Saul M. Honigberg* and
Kedar Purnapatre
Division of Cell Biology and Biophysics, School of Biological Sciences,
University of Missouri-Kansas City, 5007 Rockhill Rd, Kansas City, MO 64112,
USA

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Fig. 1. Mechanisms of signal integration. (A) Convergence of nutritional and cell
type control signals on regulation of the IME1 gene. The different
signals shown at the top of the figure act through different regulatory
elements of the IME1 gene. (B) Convergence of nutritional signal on
regulation of the IME2 gene through the URS1 regulatory element.
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Fig. 2. Working model for the signal network that controls meiotic initiation in
S. cerevisiae. The three principal nutritional signals required to
initiate meiosis are shown in boxes. The diagram shows some of the signal
transduction pathways that control meiotic initiation and examples of where
these pathways are connected (see text for details). The names of the proteins
are abbreviated without the final `p' for brevity (e.g. Snf1 rather than
Snf1p).
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© The Company of Biologists Ltd 2003