Gap junctions prevent molecules and ions from traveling between cells in the extracellular space.

Gap junctions form channels that are comprised of connexin proteins.

Gap junctions contribute to electrical coupling of adjacent cells.

Gap junctions have some functionality of permitting cells to adhere to one another.

Gap junctions permit the travel of small molecules back and forth between adjacent cells.

actin cytoskeleton . . . cadherins

intermediate filament cytoskeleton . . . integrins

microtubule cytoskeleton . . . integrins

microtubule cytoskeleton . . . cadherins

I and III

I, II, and III

III and IV

I, II, III, and IV