enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Microfilament - Wikipedia

    en.wikipedia.org/wiki/Microfilament

    Microfilament functions include cytokinesis, amoeboid movement, cell motility, changes in cell shape, endocytosis and exocytosis, cell contractility, and mechanical stability. Microfilaments are flexible and relatively strong, resisting buckling by multi-piconewton compressive forces and filament fracture by nanonewton tensile forces.

  3. Myofilament - Wikipedia

    en.wikipedia.org/wiki/Myofilament

    The protein complex composed of actin and myosin, contractile proteins, is sometimes referred to as actomyosin.In striated skeletal and cardiac muscle, the actin and myosin filaments each have a specific and constant length in the order of a few micrometers, far less than the length of the elongated muscle cell (up to several centimeters in some skeletal muscle cells). [5]

  4. Myosin - Wikipedia

    en.wikipedia.org/wiki/Myosin

    Myosin X is an unconventional myosin motor, which is functional as a dimer. The dimerization of myosin X is thought to be antiparallel. [53] This behavior has not been observed in other myosins. In mammalian cells, the motor is found to localize to filopodia. Myosin X walks towards the barbed ends of filaments.

  5. Cytoskeleton - Wikipedia

    en.wikipedia.org/wiki/Cytoskeleton

    A main component in the cytoskeleton that helps show the true function of this muscle contraction is the microfilament. Microfilaments are composed of the most abundant cellular protein known as actin. [10] During contraction of a muscle, within each muscle cell, myosin molecular motors collectively exert forces on parallel actin filaments.

  6. Motor protein - Wikipedia

    en.wikipedia.org/wiki/Motor_protein

    Myosin II is an elongated protein that is formed from two heavy chains with motor heads and two light chains. Each myosin head contains actin and ATP binding site. The myosin heads bind and hydrolyze ATP, which provides the energy to walk toward the plus end of an actin filament. Myosin II are also vital in the process of cell division. For ...

  7. Protein filament - Wikipedia

    en.wikipedia.org/wiki/Protein_filament

    This movement of myosin along the microfilament can cause muscle contraction, membrane association, endocytosis, and organelle transport. The actin microfilament is composed of three bands and one disk. The A band is the part of the actin that will bind to the myosin during muscle contraction.

  8. Cell cortex - Wikipedia

    en.wikipedia.org/wiki/Cell_cortex

    This is primarily accomplished through myosin II motors, which pull on the filaments to generate stress. [12] These changes in tension are required for the cell to change its shape as it undergoes cell migration and cell division. [12] In mitosis, F-actin and myosin II form a highly contractile and uniform cortex to drive mitotic cell rounding.

  9. MYH9 - Wikipedia

    en.wikipedia.org/wiki/MYH9

    Myosin-9 also known as myosin, heavy chain 9, non-muscle or non-muscle myosin heavy chain IIa (NMMHC-IIA) is a protein which in humans is encoded by the MYH9 gene. [5] [6]Non-muscle myosin IIA (NM IIA) is expressed in most cells and tissues where it participates in a variety of processes requiring contractile force, such as cytokinesis, cell migration, polarization and adhesion, maintenance of ...