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myosin

myosin

1 9.5
A protein in muscles that works with actin to make them move
  • noun
  • /ˈmaɪəsɪn/
  • Specialized
: miosina
  • Within these myofibrils are bundles of thick filaments, which are myosin, and thin filaments which are actin.
  • myosin; paramyosin
  • myosin and actin
  • myosin-containing filaments

Estrogen is responsible for how strong myosin attaches to actin.

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Examples

  • Thick filaments contain myosin, and thin filaments are composed of actin.

    Academic text (2005)
  • And I'm going to focus on this cardiac myosin in this short talk.

  • It's best to start from the most basic level of mechanics with actin and myosin.

    Blog text (20)
  • Fiber recovery is complete when adult myosin has replaced all of the developmental myosin.

    Academic text (2005)
  • Stress fibers are mostly formed by actin and myosin.

    Academic text (2017)
  • Estrogen is responsible for how strong myosin attaches to actin.

    ZOE
  • Developmental myosin is an indicator of muscle recovery after damage (St. Pierre & Tidball, 1994).

    Academic text (2005)
  • The muscle fibers contract when myosin interacts with actin during physical activity.

  • In skeletal muscles, myosin and actin work together to produce movement.

  • Scientists investigate how myosin contributes to the contraction of muscle cells.

Surface Forms

myosin singular
myosins plural

Morphology

myosin = myo (opaque) = myo + in

The combining form 'myo-' is a specialised scientific element (not a familiar standalone word like 'muscle'), and the protein suffix '-in' is technical, so the sense is not derivable by an average B1 learner from common vocabulary.

Etymology

The word myosin comes from the Greek beginning myo- meaning 'muscle', a word that also once meant 'mouse' because people thought muscles looked like little mice under the skin, and the ending -in is used for proteins. So, myosin is a protein in muscles that helps them move.