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International Conference on Mathematical Biology and

Annual Meeting of The Society for Mathematical Biology,

July 27-30, 2009

University of British Columbia, Vancouver

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Program

MSB1a
Raibatak Das
University of British Columbia
Title Imaging and modeling the recruitment of cytosolic signaling proteins to the plasma membrane
Abstract The recruitment of cytosolic signaling proteins to the plasma
membrane is a key step in a variety of intracellular signaling cascades
initiated by the activation of membrane-associated receptors. The
translocation of a cytosolic protein is frequently observed within
seconds to minutes following receptor activation. The in vivo dynamics
of this process are typically difficult to quantify accurately. As a
prototypical example for such a system, we study the recruitment of the
adaptor protein Gab-1 to the plasma membrane of B lymphocytes upon B
cell receptor crosslinking. We use a combination of confocal
fluorescence microscopy to observe this process in individual cells
under physiological conditions, and image processing tools to quantify
the recruitment dynamics. In this talk I will present the details of our
methodology and the efforts to model and parametrize this phenomenon.
LocationWoodward 1