Getting Your Actin Together
Actin is the most abundant protein in most eukaryotic cells, with more protein-protein interactions than any other known protein.
It participates in many important cellular processes, including muscle contraction, cell motility, cell division, the movement of vesicles and organelles within cells, cell signaling and cell shape.
Actin is a big part of the cytoskeleton, the complex network of interlinking tubes and filaments that give fundamental structure and function to a cell.
In the image above, created by Howard Vindin, stained actin filaments are revealed in an osteosarcoma cancer cell.
source : University of California – San Diego Health