What are integrin #alpha# and #beta# in biology?
Integrins have a major role in integrating extracellular and intracellular environments. Another role is adhesion of cells to their substratum or other cells.
Integrins exist as two non-covalently bound a and b subunits, which
pair to form heterodimers. They function as adhesion molecules and play key roles in actin cytoskeleton organization and transduction of intracellular signals.