Biology / Bio 0777 · Atom · ~20 seconds
Cell-Surface Receptors: Three Domains
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
A cell-surface receptor spans the membrane with an extracellular domain that binds ligand, a transmembrane domain, and an intracellular domain that passes the signal onward.
Show
The extracellular domain binds ligand outside the cell, so the ligand never has to cross the membrane.
Watch for
The receptor converts a signal at the membrane — the ligand's job ends at binding, not delivery inward.