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|Title:||Sid4p-Cdc11p assembles the septation initiation network and its regulators at the S. pombe SPB||Authors:||Morrell, J.L.
|Issue Date:||6-Apr-2004||Citation:||Morrell, J.L., Tomlin, G.C., Rajagopalan, S., Venkatram, S., Feoktistova, A.S., Tasto, J.J., Mehta, S., Jennings, J.L., Link, A., Balasubramanian, M.K., Gould, K.L. (2004-04-06). Sid4p-Cdc11p assembles the septation initiation network and its regulators at the S. pombe SPB. Current Biology 14 (7) : 579-584. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cub.2004.03.036||Abstract:||The Schizosaccharomyces pombe septation initiation network (SIN) triggers actomyosin ring constriction, septation, and cell division. It is organized at the spindle pole body (SPB) by the scaffold proteins Sid4p and Cdc11p. Here, we dissect the contributions of Sid4p and Cdc11p in anchoring SIN components and SIN regulators to the SPB. We find that Sid4p interacts with the SIN activator, Plo1p, in addition to Cdc11p and Dma1p. While the C terminus of Cdc11p is involved in binding Sid4p, its N-terminal half is involved in a wide variety of direct protein-protein interactions, including those with Spg1p, Sid2p, Cdc16p, and Cdk1p-Cdc13p. Given that the localizations of the remaining SIN components depend on Spg1p or Cdc16p, these data allow us to build a comprehensive model of SIN component organization at the SPB. FRAP experiments indicate that Sid4p and Cdc11p are stable SPB components, whereas signaling components of the SIN are dynamically associated with these structures. Our results suggest that the Sid4p-Cdc11p complex organizes a signaling hub on the SPB and that this hub coordinates cell and nuclear division.||Source Title:||Current Biology||URI:||http://scholarbank.nus.edu.sg/handle/10635/130422||ISSN:||09609822||DOI:||10.1016/j.cub.2004.03.036|
|Appears in Collections:||Staff Publications|
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