copyright © 2005 pearson prentice hall, inc. intracellular compartments and transport membrane...
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Copyright © 2005 Pearson Prentice Hall, Inc.
Intracellular Compartments and
Transport
•Membrane Enclosed Organelles
•Protein Sorting
•Vesicular Transport
•Secretory Pathways
•Endocytic Pathways
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Membrane Enclosed Organelles
• Eukaryotes’ Basic Set• Evolution
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Membrane Enclosed Organelles Eukaryotes’ Basic
Set-Diagram
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Membrane Enclosed Organelles Eukaryotes’ Basic
Set-List
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Membrane Enclosed Organelles Eukaryotes’ Basic
Set-Electron Micrograph
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Membrane Enclosed Organelles Eukaryotes’ Basic
Set- Relative Volume &
Abundance
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Membrane Enclosed Organelles Evolution -
Nucleus
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Membrane Enclosed Organelles Evolution -
Mitochondria
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Protein Sorting
• Three mechanisms• Signal Sequences Direct Proteins to
the Correct Compartment• Enter Nucleus through Nuclear Pores• Unfold to Enter Mito & Chloro• Enter ER during Synthesis• Soluble Released into ER lumen• Transmembrane Arrangement by Start
& Stop Signals
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Protein Sorting3 Mechanisms
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Protein Sorting Signal Sequences Direct Proteins to
the Correct Compartment
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Protein Sorting
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Protein SortingTransport through Nuclear
Pores
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Protein SortingTransport through Nuclear
Pores
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Protein SortingTransport through Nuclear
Pores
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Protein SortingUnfold to Enter Mitochondrion & Chloroplast
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Protein Sorting Enter ER during Synthesis
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Protein Sorting Enter ER during Synthesis
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Protein Sorting Enter ER during Synthesis
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Protein Sorting Enter ER during Synthesis
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Protein Sorting Transmembrane Arrangement by
Start & Stop Signals
Copyright © 2005 Pearson Prentice Hall, Inc.