BIOS41_Lecture16_02222008

BIOS41_Lecture16_02222008 - transport vesicles to their...

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BIOS 41 Biology Core I: Cellular and Molecular Spring 2008 Professor J. A. Sands Lecture 16, February 22 Intracellular Compartments and Transport (Chapter 15, pages 512-523)
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15_17_Vesicles_bud.jpg Vesicles bud from one membrane and fuse with another, carrying membrane components and soluble proteins between cellular compartments.
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15_18_Clathrin_EM.jpg Clathrin molecules form basketlike cages that help shape membranes into vesicles.
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15_19_Clathrin_vesicle.jpg Clathrin-coated vesicles transport selected cargo molecules.
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15_20_SNAREs.jpg SNAREs help direct
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Unformatted text preview: transport vesicles to their target membranes. 15_21_membr_fusion.jpg SNARE proteins play a central role in membrane fusion. 15_22_glycosylated_ER.jpg Many proteins are glycosylated in the ER. 15_24_Golgi .jpg The Golgi apparatus is made of a stack of flattened, membrane-like sacs. 15_28_trans_Golgi_net.jpg Secretory proteins are released from the cell by exocytosis. 15_29_Secretory_vesicl.jpg Example: An increase in blood glucose signals cells in the pancreas to secrete the hormone insulin....
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BIOS41_Lecture16_02222008 - transport vesicles to their...

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