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Molecular, Cellular, and Developmental Biology Graduate Theses & Dissertations

2017

Adaptor protein complex

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Identification And Characterization Of Regulators Of Glut4 Trafficking, Daniel Richard Gulbranson Jan 2017

Identification And Characterization Of Regulators Of Glut4 Trafficking, Daniel Richard Gulbranson

Molecular, Cellular, and Developmental Biology Graduate Theses & Dissertations

Cargo proteins moving between organelles are transported by membrane-enclosed vesicles. Identifying the factors regulating vesicle-mediated transport remains a major challenge in mammalian cells. Here, we performed unbiased genome-wide CRISPR-Cas9 genetic screens to systematically dissect insulin-dependent translocation of glucose transporters (GLUTs), a classic vesicle transport pathway crucial to mammalian physiology. These screens identified known regulators of the pathway as well as a large number of unknown regulatory factors that we validated in secondary screens. The identified genes encode established or predicted factors involved in vesicle budding or fusion, cargo sorting, signal transduction, cell motility, and cellular metabolism, as well as proteins ...