'Motor proteins ' diaporamas de présentation

BIOL 200 (Section 921) Lecture # 11 [July 4, 2006]

BIOL 200 (Section 921) Lecture # 11 [July 4, 2006]. UNIT 8: Cytoskeleton Reading : ECB, 2nd ed. Chap 17 . pp 573-606; Questions 17-1, 17-2, 17-12 to 17-23. ECB, 1st ed. Chap 16 . pp 513-542; Questions 16-1, 16-2, 16-10 to 16-21. UNIT 8: Cytoskeleton - Objectives.

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Cytoskeleton A cytoplasmic system of fibers -> critical to cell motility (movement)

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Chapters 6 & 12

Chapters 6 & 12. The Cytoplasm. The Typical Cell. typical cell: 1. nucleus 2. cell membrane 3. cytoplasm -cytosol -cytoskeleton 4. cytoplasmic organelles -membranous -non-membranous. Cytoplasm. semi-fluid-like jelly within the cell

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Motor Proteins

Motor Proteins. 2 Motor Systems. Actin-based motility: motor proteins are myosins Tubulin-based motility: motor proteins are kinesins and dyneins. Roles of the actin-based system. Cell Crawling - lymphocytes Growth cone extension

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Cytoskeleton

Cytoskeleton. Lecture 28 Pages 573 - 607. A cytoskeleton is needed for many many cellular functions, such as; Muscle contraction Permitting sperm to swim Immune system In fact without the functioning of the cytoskeleton life would be stagnant at the very most.

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Detailed Study of Representative Proteins

Detailed Study of Representative Proteins. Specialized Function. Molecular Chaperones. Molecular Chaperones.

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Cellular Movement

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Signal Transduction and Cell Cycle Paul Shapiro, Room 222 Pharmacy Hall pshapiro@rx.umaryland

MPHY616. Signal Transduction and Cell Cycle Paul Shapiro, Room 222 Pharmacy Hall pshapiro@rx.umaryland.edu Office: 6-8522 Lab (Rm 269): 6-2980. Objectives: A. Overview cell cycle. B. Define major mitotic structural changes. C. Define major G2/M-phase signaling events. Somatic Cell Cycle:.

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Cellular Movement and Muscles

Cellular Movement and Muscles. Cellular movement. Movement is a property of all cells. Some cells (such as this amoeba) can move through their environment. All cells can move components through the cytoplasm (such as the vesicles in this amoeba). Cytoskeleton and Motor Proteins.

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Lecture 14 Cytoskeleton: components

Lecture 14 Cytoskeleton: components. Cytoskeleton proteins revealed by Commassie staining. Cytoskeleton: filament system. Three types of filaments and accessory proteins (assembly of cytoskeleton, motor proteins that move organelles or filaments). Internal order Shape and remodel surface

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Lecture 14 Cytoskeleton: components

Lecture 14 Cytoskeleton: components. Cytoskeleton proteins revealed by Commassie staining. Cytoskeleton: filament system. Three types of filaments and accessory proteins (assembly of cytoskeleton, motor proteins that move organelles or filaments). Internal order Shape and remodel surface

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Molekulare Maschinen und Nanomechanik

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Class 10. Motor proteins that move along polymer tracks.

Class 10. Motor proteins that move along polymer tracks. Kinesin . Yildiz et al, Kinesin w alks hand-over-hand. Science 303:676 (2004). Goals: Learn about motor proteins that move along tracks Positioning the center of an object to better than l

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INTRACELLULAR MOTILITY Lecture 6 January 23rd, 2006

INTRACELLULAR MOTILITY Lecture 6 January 23rd, 2006. Intracellular transport requires microtubules. Stain with an anti-gamma tubulin antibody (red). Gamma-tubulin at initiates synthesis at one end (-) (green). Microtubules assemble from organizing centers. Pericentriolar material.

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How do Molecules form Living, Moving, Reproducing Cells?

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PROTEINS

PROTEINS. INTRODUCTION. Useful Proteins. There are thousands and thousands of different combinations of amino acids that can make up proteins and that would increase if each one had multiple shapes Proteins usually have only one useful conformation

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Chapter 4.11

Chapter 4.11. How Do Cells Move?. AP Biology Fall 2010. Objectives. Describe the differences between psudopods, cilia, and flagella Understand the mechanism which moves cilia and flagella. Moving Along with Motor Proteins.

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Motor Proteins - Introduction Part 1

Motor Proteins - Introduction Part 1. Biochemistry 4000 Dr. Ute Kothe. Motor Proteins. Motor Proteins convert chemical energy into motion. chemical energy is derived from ATP hydrolysis motion is generated by conformational changes depending on the bound nucleotide.

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Super Cilia

Super Cilia. By Jonathan Klotz. This Superhero Comes in more than One Type: Cilia Classification. Two major types of cilia: motile and immotile Motile Cilia: Found in large eukaryotic organisms such as mammals Occur on cells in large groups Move in unison to complete a task

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Ross Lab - Biophysics

Ross Lab - Biophysics. 10 ? m. Cytoskeleton: Rich Biological System of Interest Microtubules Shape the Cell Motor Proteins Move Objects and Microtubules Microtubule regulation through modifications and motor proteins Microtubule Motors Traffic Problems Dynein, Kinesin, Eg5, MAPs

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