Actin

Actin is a key protein found in all eukaryotic cells, playing a crucial role in cell shape, movement, and communication. It forms long, thin filaments that can assemble and disassemble, allowing cells to change shape and move, which is vital for processes like muscle contraction, cell division, and wound healing. Actin is also involved in transporting materials within cells and helping them maintain structure. Essentially, actin is foundational to many cellular functions, making it essential for the life and health of organisms, including humans.