Abstract
The Saccharomyces cerevisiae and Schizosaccharomyces pombe genomes encode a single SUN domain-containing protein, Mps3 and Sad1, respectively. Both localize to the yeast centrosome (known as the spindle pole body, SPB) and are essential for bipolar spindle formation. In addition, Mps3 and Sad1 play roles in chromosome organization in both mitotic and meiotic cells that are independent of their SPB function. To dissect the function of Mps3 at the nuclear envelope (NE) and SPB, we employed cell imaging methods such as scanning fluorescence cross-correlation spectroscopy (SFCCS) and single particle averaging with structured illumination microscopy (SPA-SIM) to determine the strength, nature, and location of protein-protein interactions in vivo. We describe how these same techniques can also be used in fission yeast to analyze Sad1, providing evidence of their applicability to other NE proteins and systems.
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Acknowledgments
We are grateful to members of the Microscopy Center and the Jaspersen lab for stimulating discussions and to Briana Holt, Jennifer Gardner, Christine Smoyer, Ann Cavanaugh, Andrew Bestul, and Jeff Lange for their comments on the manuscript.
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Unruh, J.R., Slaughter, B.D., Jaspersen, S.L. (2018). Functional Analysis of the Yeast LINC Complex Using Fluctuation Spectroscopy and Super-Resolution Imaging. In: Gundersen, G., Worman, H. (eds) The LINC Complex. Methods in Molecular Biology, vol 1840. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-8691-0_12
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DOI: https://doi.org/10.1007/978-1-4939-8691-0_12
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