'Myosin' presentation slideshows

Muscle Tissue and Function. Muscle Cell Architecture and Function Mechanics of muscle contraction—the “sliding filament” model and role of actin and myosin proteins Types of muscle cells Motor Units. are unique to animals have “excitable” membranes that transmit action potentials

Muscle Cell Function. Vertebrate Anatomy – Ch. 9 AP Biology – Ch. 49. Functions of Muscle. Maintain body posture Stabilize joints Provide mobility Generate heat. Three Types of Muscle. Smooth muscle Found in the organs Stomach, intestines, etc. Involuntary Unconscious control.

Ch 36 Musculoskeletal System . AP lecture. Three vertebrate muscles. Skeletal A.k.a striated Voluntary movements . Cardiac Involuntary Beating of the heart Appears striated because of myosin and actin Smaller than skeletal Cells attached by gap junctions . Smooth Involuntary

Sliding Filament Theory Review. Acetylcholine Actin ATP Ca + ions Myosin heads. Na+/K+ ions Troponin Tropomyosin Sarcoplasmic reticulum Z-line. The “Actors”. Binds to sarcolemma Opens Na+/K+ gated ion channels. Acetylcholine. Pulled by myosin Attaches to Z-line. Actin.

Cellular Odd and Ends. BIO 201 Kelly Trainor, PhD. Membrane Junctions. Three types: Tight junction Desmosome Gap junction . Membrane Junctions: Tight Junctions. Impermeable junctions prevent molecules from passing through the intercellular space

6. The Muscular System. The Muscular System. Muscles are responsible for all types of body movement Three basic muscle types are found in the body Skeletal muscle Cardiac muscle Smooth muscle. Characteristics of Muscles.

Figures for Movsesian lectures on inotropy and vasodilatation. Troponin I Troponin C Troponin T. Tropomyosin. Actin. Low ATPase activity. Myosin. Ca 2+. Troponin I Troponin C-Ca 2+ Troponin T. Tropomyosin. Actin. High ATPase activity and contraction. Myosin.

The structural basis of the cross-bridge cycle. DECORATED ACTIN was the first em reconstruction Moore, Huxley, and DeRosier 1970 J. Mol Biol. Reconstruction by filtered least squares. Projection every 1° (181 projections) Number of observational equations is 161 x 181=29141

LECTURE 3 - NONMUSCLE CELLS & CELL LOCOMOTION. Non-Contractile Bundles Lamellipodia Filopodia Surface Projections Non-Muscle Cells Circumferential belt Cortical attachment Stress fibers Cytokinesis Vesicle transport Cell Locomotion. Lamellipodium. Broad membrane protrusion

11.2: Muscles & Movement. Which structure is responsible for passing messages directly to effector organs?. 11.2.1 State the roles of ...in human movement. Bones Lever for movement Frame to support body Protect tissue/organs Form blood cells (marrow) Store minerals Ligaments

Molecular Basis of Muscle Contraction. Mercedita Macalintal , MD, DPPS. Types of Muscles. Vertebrate Skeletal Muscle. Skeletal Muscle is also called striated muscle Sarcomere: repeating unit of muscle tissue Z lines ~ sarcomere border I band~only actin protein

Head. Rho/Rac GAP. 4x IQ. N-terminal extension. Zn binding motif. Coiled- coil. PEST. MyoVa & b. Neck. 215 kDa. MyoVc. 203 kDa. Myosin V. Myosin IX. P. Myosin Va. Melanophilin. Rab27. Melanosome. Myosin V. A. B. 6 x IQ. Globular domain. Coiled-coiled. Head. 5 x IQ.

PLAQUE FORMATION AND BIOCHMICAL MARKERS OF ISCHEMIA. Dr Azra Parveen Senior Registrar Medicine. Acute Myocardial Infarction. Acute myocardial infarction is the rapid development of myocardial necrosis caused by a critical imbalance between the oxygen supply

Outline: The Lymn-Taylor cycle PCA method (theory & applications) Individual involvement coefficient (theory & applications) Summary Future work. http://www.sciencemag.org/feature/data/1049155s1.mov. The Lymn-Taylor cycle. Myosin is bound to actin

The Molecular Motor Myosin. Jonathan P. Davis, Ph.D. Assistant Professor Office/Lab Phone 247-2559 Email: davis.812@osu.edu. Department of Physiology and Cell Biology, The Ohio State University, 400 Hamilton Hall.

Contraction and Excitation of Smooth Muscles Arsalan Yousuf. BS 4 th Semester. Involuntary non-striated muscles . Much smaller than skeletal 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.

Cellular Movement. Cnidarians. Sponges (phylum Porifera). Ctenophores. Hydra. Medusa. Sea gooseberries. Sea walnut. Nematodes. Flatworms. Annelids. Annelids – Internal structure. Internal structure of a crayfish (lateral view). Cytoskeleton and Motor Proteins.

Sarcomeric Protein Mutations in Dilated Cardiomyopathy. DCM. A heart disease characterized by dilatation and impaired contraction of the left ventricle or both ventricles. A relatively common disease, affecting about 36.5 out of 100,000 people, of which, 25–30% are familial DCM.

a. b. c. NMBA, CS, and Sepsis. CS Only. d. e. f. FIGURE 3. g. h. i. Day 1. Day 5. Day 1. Day 5. FIGURE 1. A. B. Myosin mRNA expression in the EDL, soleus, diaphragm and masseter muscles of control, denervated and neuromuscular blocked mechanically ventilated rats. FIGURE 4.