Question

What are integrin `alpha` and `beta` in biology?

Answer 1

Integrin is a family of membrane proteins composed of heterodimers with α and β subunits.

Explanation:

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.