'Actin polymerization' presentation slideshows

Lecture 3

Lecture 3. Actin and myosin in non-muscle cells; Cell motility. Outline: Actin polymerization in vitro Regulation of actin dynamics in cells Actin organization Cell motility. Paper: Self-polarization and directional motility of the cytoplasm. monomer = G-actin.

582 views • 44 slides

CHEMOTAXIS: Signalling the way forward

CHEMOTAXIS: Signalling the way forward. Christian Westermeier. Chemotaxis of Dictyostelium discoideum. Structure of the presentation short introduction signalling pathways: - directional sensing - establishment of polarity - locomotion of the cell summarization. Chemotaxis.

642 views • 43 slides

Force and polymerization: Breaking symmetry

Force and polymerization: Breaking symmetry. We will start with demonstrating a relationship and then demonstrating significant biological importance. Marc W. Kirschner Lecture IV April 5, 2005. Effect of actin polymerization on lipid vesicles coated with Act A. Sickle cell Anemia. control.

470 views • 35 slides

Axon Outgrowth and Pathfinding

Axon Outgrowth and Pathfinding. Additional notes. Growth Cones. Nerve cell processes (both axons and dendrites) grow specialized terminations, called growth cones . This is the site from which neurite extensions arise.

533 views • 31 slides

Axon Outgrowth and Pathfinding

Axon Outgrowth and Pathfinding. Additional notes. Growth Cones. Nerve cell processes (both axons and dendrites) grow specialized terminations, called growth cones . This is the site from which neurite extensions arise.

479 views • 31 slides

02.15.10 Lecture 12 - The actin cytoskeleton

02.15.10 Lecture 12 - The actin cytoskeleton. Actin filaments allow cells to adopt different shapes and perform different functions. Villi. Contractile bundles. Sheet-like & Finger-like protrusions. Contractile ring. Actin filaments are thin and flexible. 7 nm in diameter

488 views • 27 slides

Journal Review

Journal Review. Rho family GTPases Thuy Nguyen 3/6/2012. Actin filaments: critical role in cell migration. Actin depolymerization. Actin polymerization. Microtubule: critical role in mitosis and vesicle transports. Cell migration.

565 views • 26 slides

Actin Filament Assembly, Growth, Branching, Capping and Disassembly are

Actin Filament Assembly, Growth, Branching, Capping and Disassembly are Controlled by Actin Binding Proteins. Actin polymerization is induced by Arp 2/3 protein complex at the surface of Listeria monocytogenes Matthew D. Welch et al.

451 views • 23 slides

Actin Filament Assembly, Growth, Branching, Capping and Disassembly are

Actin Filament Assembly, Growth, Branching, Capping and Disassembly are Controlled by Actin Binding Proteins. Actin polymerization is induced by Arp 2/3 protein complex at the surface of Listeria monocytogenes Matthew D. Welch et al.

430 views • 23 slides

CELLULAR MOTILITY Lecture 5 January 20th, 2006

CELLULAR MOTILITY Lecture 5 January 20th, 2006. Cell Motility. Migration/Movement of cells requires: 1- Anchorage 2- Active cytosketelon. Intercellular Motility (movements between cell sheets) Cell movements are important for the morphogenesis of the neural tube.

580 views • 22 slides

L312/Spring 2007 Lecture 15 Drummond March 1

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How does actin polymerization drive protrusion?

Polymerization at tip?. Expansion of actin meshwork?. Increase in hydrostatic pressure?. How does actin polymerization drive protrusion?. Hypothesis #1. Hypothesis #2. Hypothesis #3. Evidence for #1: The Acrosome reaction. Stages during fertilization of a sea-urchin egg.

433 views • 19 slides

Photobleaching fluorescent actin in a fibroblast

Photobleaching fluorescent actin in a fibroblast. Experiment #1. The fluorescent mark moves backward with respect to the front cell edge ( and with respect to the substratum). Alberts Fig. 16.56. Slow moving cell. Conclusion: 1. Actin meshwork is flowing backward

257 views • 17 slides

Burkholderia

Burkholderia. Wide host range. Burkholderia mallei (glanders) and Burkholderia pseudomallei (melioidosis) are Category B agents. Germans used B. mallei as biological weapon during World War I.

589 views • 15 slides

258 views • 13 slides