Cell Organization & Cell Motility - Part 3, Julie Theriot

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Cell Organization & Cell Motility
Julie Theriot, May 2006
Stanford University, Dept of Biochemistry, Dept of Microbiology & Immunology, Program in Biophysics

Lecture Overview
In the third part, I discuss how the complex shapes of cells are created by the cytoskeleton, and I compare and contrast prokaryotes (which have actin-, tubulin-, and intermediate filament -like proteins) and eukaryotes in this regard. In particular, I speculate that cytoskeletal dynamics were necessary to evolve simple bacterial shapes and cell division, but that additional layers of complexity (namely regulated nucleation and molecular motors) allowed eukaryotes to evolve more complex shapes and organize their internal components.
Part 3: Principles of Cellular Organization:
The Universal Cytoskeleton (29:17)

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Format Descriptions
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Part 1: Cell Motility and the Cytoskeleton: Protein Polymers Crawling Cells and Comet Tails (43:53)

Part 2: Force Generation by Actin Assembly: Theories and Experiments (46:16)

Speaker Bio   Related Articles

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Lecture Overview In the third part, I discuss how the complex shapes of cells are created by the cytoskeleton, and I compare and contrast prokaryotes (which have actin-, tubulin-, and intermediate filament -like proteins) and eukaryotes in this regard. In particular, I speculate that cytoskeletal dynamics were necessary to evolve simple bacterial shapes and cell division, but that additional layers of complexity (namely regulated nucleation and molecular motors) allowed eukaryotes to evolve more complex shapes and organize their internal components.	Part 3: Principles of Cellular Organization: The Universal Cytoskeleton (29:17) Click image above to start seminar in 320x240 format Click here to view in larger 640x480 format* QuickTime 7 Required 640x480 System Requirements (there may be a few seconds delay before seminars start) Downloads in alternative formats:* (To Save, Right Click a link below and select "Save Target/Link As") QuickTime (60mb) MP4 (261mb) iPod/iPhone Video (181mb) PowerPoint Slides 1/page (1.2mb) PowerPoint Slides 6/page (446kb) Format Descriptions Download Accelerator/Resume Broken Downloads Software
Part 1: Cell Motility and the Cytoskeleton: Protein Polymers Crawling Cells and Comet Tails (43:53) Part 2: Force Generation by Actin Assembly: Theories and Experiments (46:16) Speaker Bio Related Articles