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Actin
Which molecule causes the myosin binding sites to be exposed?
The calcium ions bind to regulatory proteins on the actin filaments, changing both their shape and their position on the actin filaments. This action ...
What is the function of actin fibers?
Actin filaments are particularly abundant beneath the plasma membrane, where they form a network that provides mechanical support, determines cell sha...
Where is actin found?
The actin protein is found in both the cytoplasm and the cell nucleus. Its location is regulated by cell membrane signal transduction pathways that in...