Answer:
Actin is a family of globular multi-functional proteins that form microfilaments. It is found in essentially all eukaryotic cells, where it may be present at a concentration of over 100 μM
Explanation:
Function of Actin Protein
: (1) Being the structural makeup and support of the cytoskeleton. (2) Dividing and producing cells in order to enable cells to move spontaneously and actively. (3) Serving as a supportive framework for myosin proteins during muscle contraction.
Structure of Actin Protein
: They are the smallest cytoskeletal filaments, with a diameter of 7 nm. They are thin, relatively flexible threads that can be crosslinked together in different ways to form very different structures. Actin monomers are called globular actin or G-actin
