Proteintransport

Proteintransport - Structure/Function of the Organelles -...

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Structure/Function of the Organelles - Synthesis
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The Endomembrane System Membrane organelles – a dynamic, integrated network Materials are shuttled – small transport vesicles Bud from a donor membrane compartment Move in a directed manner Pulled by motor proteins Tracks – microtubules of the cytoskeleton At their destination – fuse with membrane of acceptor compartment Repeated cycles of budding and fusion Protein Synthesis and Transport within the Cell
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The Endomembrane System Protein Synthesis and Transport within the Cell
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The Endomembrane System Typical biosynthetic pathway Proteins synthesised in the endoplasmic reticulum Modified through the Golgi complex Transported to destination Also a secretory pathway Protein Synthesis and Transport within the Cell
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The Endomembrane System Secretory activities – two types Constituitive Transported from site of synthesis and secreted continuously Regulated Materials to be secreted are stored in large, densely packed, membrane-bound secretory granules Discharged following specific stimulus Examples: endocrine cells, acinar cells, nerve cells Protein Synthesis and Transport within the Cell
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The Endomembrane System Materials moved out by secretory pathways Materials moved in by endocyte pathway From outside the cells to endosomes / lysosomes
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This note was uploaded on 12/28/2011 for the course STEP 1 taught by Professor Dr.aslam during the Fall '11 term at Montgomery College.

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Proteintransport - Structure/Function of the Organelles -...

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