The swinging cross-Figure 3 from The myosin swinging cross-bridge model - Semantic Scholar

James A Spudich. Skip to search form Skip to main content. No biological system has been studied by more diverse approaches than the actin-based molecular motor myosin. Biophysics, biochemistry, physiology, classical genetics and molecular genetics have all made their contributions, and myosin is now becoming one of the best-understood enzymes in biology. View on Nature.

The swinging cross

The swinging cross

The swinging cross

The swinging cross

References 1 Huxley, H. Figure 1: The swinging cross-bridge model. Huxley, A. Whittaker, M. Article Google Scholar 26 Cooke, R. Reprints and Permissions. Vale, R.

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This page has been archived and is no longer updated. The power stroke of the swinging cross-bridge model, via myosin-actin cycling. Keywords Keywords for this Article. Save Cancel. Flag Inappropriate The Content is. Flag Content Cancel. Delete Content. Delete Cancel. Actin red interacts with myosin, shown in globular form pink and a filament form black line. The model shown is that of H. Huxley, modified to indicate bending curved arrow near the middle of the elongated cross bridge subfragment 1, or S1 which provides the working stroke.

This bending propels actin to the right approximately 10 nanometers 10 nm step. S2 tethers globular myosin to the thick filament horizontal yellow line , which stays in place while the actin filament moves. Modified from Spudich This image is linked to the following Scitable pages:.

How do muscles contract? What molecules are necessary for a tissue to change its shape? Comments Close. The Comment you have entered exceeds the maximum length. Comments Please Post Your Comment. No comments yet. Save Note Note. You have authorized LearnCasting of your reading list in Scitable. Do you want to LearnCast this session? This article has been posted to your Facebook page via Scitable LearnCast.

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The swinging cross

The swinging cross

The swinging cross

The swinging cross

The swinging cross

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The swinging lever-arm hypothesis of muscle contraction.

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. Help us improve our products. Sign up to take part. A Nature Research Journal. No biological system has been studied by more diverse approaches than the actin-based molecular motor myosin.

Biophysics, biochemistry, physiology, classical genetics and molecular genetics have all made their contributions, and myosin is now becoming one of the best-understood enzymes in biology. Huxley, H. The mechanism of muscular contraction. Science , — Huxley, A. Proposed mechanism of force generation in striated muscle. Nature , — Moore, P. Three-dimensional reconstruction of F-actin, thin filaments and decorated thin filaments. Lymn, R. Mechanism of adenosine triphosphate hydrolysis by actomyosin.

Biochemistry 10 , — Yount, R. Goody, R. Thiophosphate analogs of nucleoside di- and triphosphates. Stereochemical aspects of the interaction of myosin and actomyosin with nucleotides. Muscle Res. Cell Motil. Pollard, T. Acanthamoeba myosin. Isolation from Acanthamoeba castellanii of an enzyme similar to muscle myosin.

Time-resolved X-ray diffraction studies of the myosin layer-line reflections during muscle contraction. Sheetz, M. Movement of myosin-coated fluorescent beads on actin cables in vitro.

Nature , 31—35 Vale, R. Identification of a novel force-generating protein, kinesin, involved in microtubule-based motility.

Cell 42 , 39—50 Kron, S. Fluorescent actin filaments move on myosin fixed to a glass surface. Natl Acad. USA 83 , — Rice, S. A structural change in the kinesin motor protein that drives motility. The way things move: looking under the hood of molecular motor proteins. Science , 88—95 Goldstein, L. The road less traveled: emerging principles of kinesin motor utilization.

Toyoshima, Y. Myosin subfragment-1 is sufficient to move actin filaments in vitro. Kabsch, W. Atomic structure of the actin:DNase I complex.

Nature , 37—44 Rayment, I. Three-dimensional structure of myosin subfragment a molecular motor. Science , 50—58 Dominguez, R. Crystal structure of a vertebrate smooth muscle myosin motor domain and its complex with the essential light chain: visualization of the pre-power stroke state.

Cell 94 , — Houdusse, A. Three conformational states of scallop myosin S1. USA 97 , — Smith, C. Biochemistry 35 , — Structure of the actin-myosin complex and its implications for muscle contraction. Science , 58—65 Three-dimensional atomic model of F-actin decorated with Dictyostelium myosin S1. Jontes, J. A 32 degree tail swing in brush border myosin I on ADP release. Whittaker, M. Cooke, R. Orientation of spin labels attached to cross-bridges in contracting muscle fibres.

The mechanism of muscle contraction. CRC Crit. Shih, W. A FRET-based sensor reveals large ATP hydrolysis-induced conformational changes and three distinct states of the molecular motor myosin.

Cell , — Yanagida, T. Sliding distance of actin filament induced by a myosin crossbridge during one ATP hydrolysis cycle. Harada, Y. Mechanochemical coupling in actomyosin energy transduction studied by in vitro movement assay. Finer, J. Single myosin molecule mechanics: piconewton forces and nanometre steps. A large step for myosin. Ruppel, K. Structure—function analysis of the motor domain of myosin. Cell Dev. Mercer, J.

Novel myosin heavy chain encoded by murine dilute coat colour locus. Cheney, R. Brain myosin-V is a two-headed unconventional myosin with motor activity. Cell 75 , 13—23 Mehta, A. Myosin-V is a processive actin-based motor. Rief, M. Myosin-V stepping kinetics: a molecular model for processivity. Sakamoto, T. Direct observation of processive movement by individual myosin V molecules. Walker, M. Two-headed binding of a processive myosin to F-actin. De La Cruz, E.

The swinging cross

The swinging cross