This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. Primary support for the subproject and the subproject's principal investigator may have been provided by other sources, including other NIH sources. The Total Cost listed for the subproject likely represents the estimated amount of Center infrastructure utilized by the subproject, not direct funding provided by the NCRR grant to the subproject or subproject staff. Polarity in networks and pathways is determined by the spatial organization, subcellular distribution, dynamic behavior, interactions and functions of specific molecules within the cell. Understanding the basis for polarity in networks and pathways will require development of new methods to measure concentrations, diffusion properties and interactions of molecules in cells, new ways to manipulate concentrations, locations and interactions of molecules in cells, and new strategies to model interactions of molecules in networks and pathways in different subcellular compartments. The Technology Center for Polarity in Networks and Pathways at the Center for Cell Analysis and Modeling (CCAM) integrates new microscope technologies for making quantitative in vivo live cell measurements with new physical formulations and computational tools that produce spatially realistic quantitative models of intracellular dynamics. Three core technology projects, Model, Measure and Manipulate, provide an integrated framework for elucidating spatiotemporal dynamics in living cells. Development of tools by the Technology Development Cores is motivated by a series of Driving Biological Projects (DBP) that cover major complex problems in cell biology. These DBPs all revolve around the issue of how the cell controls the locations of its molecular components and how that polarity is used to optimize a cellular function. Advances in modeling approaches formulated under this project are subsequently integrated into the Virtual Cell for dissemination to our user base.
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