Question

What are receptor proteins?

Answer 1

Receptor proteins:

1. Receptors are proteins that recognize and adhere to ligand molecules on the cell surface or in the cytoplasm.
2. The ligands are signaling molecules that one cell produces in order to communicate with another cell.
3. A ligand and a receptor are required for this type of signaling.
4. Cellular receptors include internal receptors, cell-surface receptors, ion channel receptors, G-protein-coupled receptors (GPCRs), and enzyme-linked receptors.