myosin

Definitions

  • WordNet 3.6
    • n myosin the commonest protein in muscle; a globulin that combines with actin to form actomyosin
    • ***
Webster's Revised Unabridged Dictionary
    • n Myosin (Physiol. Chem) A protein present in muscle, serving as the principle contractile protein in muscle contraction.It was earlier considered as being formed in the process of coagulation which takes place in rigor mortis. See Muscle plasma, under Plasma.
    • ***
Century Dictionary and Cyclopedia
    • n myosin A globulin, the chief ingredient which separates from muscle-plasma on coagulation. It is a proteid body forming an elastic amorphous non-fibrous mass, insoluble in pure water but readily soluble in 5 to 10 per cent. salt solution. It begins to coagulate at 55° C. It is insoluble in a saturated salt solution.
    • ***
Chambers's Twentieth Century Dictionary
    • n Myosin mī′ō-sin an albuminous compound contained in the contractile muscular tissue.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Gr. my^s myo`s a muscle

Usage

In literature:

The pemmican we used consisted of powdered dried beef (containing the important protein, myosin) and 50 per cent.
"The Home of the Blizzard" by Douglas Mawson
Numerous kinds of protein occur in meat, but the chief varieties are myosin and muscle albumin.
"Woman's Institute Library of Cookery, Vol. 3" by Woman's Institute of Domestic Arts and Sciences
One of the chief constituents of muscular fiber is myosin.
"A Practical Physiology" by Albert F. Blaisdell
Into this special class fall myosin (of the muscles), fibrinogen (of the blood) and vitellin (of egg yolk).
"Animal Proteins" by Hugh Garner Bennett
***

In news:

Interactions between Myosin and Actin Crosslinkers Control Cytokinesis Contractility Dynamics and Mechanics.
Cytokinetics announces fundamental research in cardiac myosin activation in the journal Science.
Nonmuscle Myosin II Generates Forces that Transmit Tension and Drive Contraction in Multiple Tissues during Dorsal Closure.
Calcium-Activated Myosin V Closes the Drosophila Pupil.
Identify a requirement for the cytoskeletal myosin protein NMIIB in oligomerization, activation, and signaling by the ER stress sensor IRE1?
***

In science:

Myosin motors for example generate motion along actin filaments.
Mechanical oscillations at the cellular scale
It is well established that myosins occur within the stereocilia and could thus be involved in active movements.
Mechanical oscillations at the cellular scale
However, it is likely that these oscillations are a result of a self-organization of the actin cytoskeleton with the help of myosin motors and maybe other components.
Mechanical oscillations at the cellular scale
Block, “Force and velocity measurement for single molecules of RNA polymerase”, Science, 282, pp.902-907 (1998). K. Kitamura, M. Tokunaga, A.H. Iwane, Y. Yanagida, “A single myosin head moves along an actin filament with rectangular steps of 5.3nm”, Nature, 397, PP.129 (1999). C.
Prototyping Bio-Nanorobots using Molecular Dynamics Simulation
Several important families of motor proteins such as ribosomes, kinesins, dyneins, myosins and RNA polymerase have been identified.
Equivalence between two-dimensional cell-sorting and one-dimensional generalized random walk -- spin representations of generating operators
Kolomeisky AB, Fisher ME (2003) A simple kinetic model describes the processivity of myosin-V.
Equivalence between two-dimensional cell-sorting and one-dimensional generalized random walk -- spin representations of generating operators
For example, single-molecule Myosin, a motor protein, shows anomalously long energy storage when biochemically excited by ATP .
Self-Organized Bottleneck in Energy Relaxation
Motor proteins such as kinesins, dyneins, myosins, DNA and RNA polymerases, are important for the biological functioning of cells.
Extended Kinetic Models with Waiting-Time Distributions: Exact Results
While the entire range of β is of biological interest, in this paper we focus attention on rigid filaments such as actin filaments and microtubules which constitute the cytoskeletal structure and serve as tracks for motor proteins like myosin and kinesin[2, 3].
Elasticity of Stiff Biopolymers
***