The integrin and adhesion receptor protein pull the white blood cell between the lining cells to where damaged tissue is. Since the body lacks cell adhesion molecules, white blood cells do not stick to wounds but rather move right past so injuries do not heal. Dystrophin adds strength and structure to the muscle and cells lacking this protein are weak. Reproductive cells do not receive enough testosterone and therefore do not develop. With diabetes insipidus, ADH release from the pituitary is inhibited.
Nicotine binds to the nerve cell surface receptors.
The cells coating the nerves leading to certain muscles lack myelin. Neural messages to the muscles are blocked. Receptor mediated endocytosis. Design an experiment. Design a drug that will selectively bind to the P-gp protein.