File:Electron-Tomography-of-Cryofixed-Isometrically-Contracting-Insect-Flight-Muscle-Reveals-Novel-Actin-pone.0012643.s010.ogv
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Size of this JPG preview of this OGG file: 375 × 598 pixels. Other resolutions: 150 × 239 pixels | 386 × 616 pixels.
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[edit]DescriptionElectron-Tomography-of-Cryofixed-Isometrically-Contracting-Insect-Flight-Muscle-Reveals-Novel-Actin-pone.0012643.s010.ogv |
English: This movie illustrates a second way that S2 can affect the conformation of a myosin head during the weak-to-strong transition followed by a working stroke. Similar to Movie S8 above, an 11 nm long segment of coiled-coil has been attached at the S1-S2 junction. The S2 segment is assumed to be noncompliant with its origin at the myosin filament backbone fixed; the myosin head is assumed to be compliant. The myosin head is initially bound weakly (signified by the magenta colored heavy chain). The weak-to-strong transition involves largely azimuthal movements on its actin subunit (subunit K in this case) but the noncompliance of the S2 causes the lever arm to bend azimuthally. When strong binding occurs, signified by the change in heavy chain color to red, the S2 is already aligned with the filament axis and the working stroke is executed along the axial direction. |
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Source | Movie S9 from Wu S, Liu J, Reedy M, Tregear R, Winkler H, Franzini-Armstrong C, Sasaki H, Lucaveche C, Goldman Y, Reedy M, Taylor K (2010). "Electron Tomography of Cryofixed, Isometrically Contracting Insect Flight Muscle Reveals Novel Actin-Myosin Interactions". PLOS ONE. DOI:10.1371/journal.pone.0012643. PMID 20844746. PMC: 2936580. | ||
Author | Wu S, Liu J, Reedy M, Tregear R, Winkler H, Franzini-Armstrong C, Sasaki H, Lucaveche C, Goldman Y, Reedy M, Taylor K | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:31, 17 November 2012 | 8.2 s, 386 × 616 (1.86 MB) | Open Access Media Importer Bot (talk | contribs) | Automatically uploaded media file from Open Access source. Please report problems or suggestions here. |
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Author | Wu S, Liu J, Reedy M, Tregear R, Winkler H, Franzini-Armstrong C, Sasaki H, Lucaveche C, Goldman Y, Reedy M, Taylor K |
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Usage terms | http://creativecommons.org/licenses/by/3.0/ |
Image title | This movie illustrates a second way that S2 can affect the conformation of a myosin head during the weak-to-strong transition followed by a working stroke. Similar to Movie S8 above, an 11 nm long segment of coiled-coil has been attached at the S1-S2 junction. The S2 segment is assumed to be noncompliant with its origin at the myosin filament backbone fixed; the myosin head is assumed to be compliant. The myosin head is initially bound weakly (signified by the magenta colored heavy chain). The weak-to-strong transition involves largely azimuthal movements on its actin subunit (subunit K in this case) but the noncompliance of the S2 causes the lever arm to bend azimuthally. When strong binding occurs, signified by the change in heavy chain color to red, the S2 is already aligned with the filament axis and the working stroke is executed along the axial direction. |
Software used | Xiph.Org libtheora 1.1 20090822 (Thusnelda) |
Date and time of digitizing | 2010 |
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2010
application/ogg
1,953,354 byte
8.2 second
616 pixel
386 pixel
8f07bc2f54666f4eba10127776b4febdc4a3b98b
Categories:
- Videos of experimental biophysical methods
- Macromolecular structure analysis
- Actin video
- X-ray diffraction
- Electron microscope tomographic videos
- Insect proteins
- Videos of insect wing muscles
- Isometric contraction
- Molecular models
- Myosins
- Protein binding
- Videos of tertiary protein structure
- Videos of tissue fixation
- Media from PLOS ONE