microfilament

Tiny protein strand

Microfilaments are the thinnest protein fibers in a cell's internal scaffolding, made primarily of actin.

They give cells their shape, enable movement, and help with division.

In muscle cells, microfilaments interact with myosin to produce contraction.

The microfilaments reorganized as the cell began to crawl toward the wound site.

cellular

stress fibers

Contractile actin-myosin bundles in cells

structure

actin

Cellular contractile protein

cross-linking · bundling · branching · helical · monomer · polymer · assembly · disassembly · severing · capping

proteins

myosin

Motor protein enabling contraction

  • WASPAnglo establishment shorthand
function

cytokinesis

Cytoplasmic division after mitosis

phagocytosis · cell division · wound healing · muscle contraction

mechanics

tension

Stretched or strained state

contractile · viscoelastic · stiffness · load-bearing · resilience · deformation · remodeling

Opposites
cytoskeletal component type

microfilamentmicrotubule

Cylindrical cell structure protein

scale/size

microfilamentcable

Heavy-duty woven line

muscle fiber · rope · tendon

Family

microfilaments

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G