Actin

Actin links into long cables inside muscle cells. When myosin pulls on those cables, your muscle squeezes shorter.

Fun fact

Even tiny single-cell critters use actin cables to crawl.

Words to know

muscle
cell
protein

NGSS alignment

MS-LS1-3Body as a system
MS-LS1-2Inside the cell

Structure

Rendered in FoldLens Junior from AlphaFold Database entry P68133. See the underlying prediction at alphafold.ebi.ac.uk/entry/P68133.

About this surface

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