Jan 24, 2015

1.  ligand gated ion channels - major membrane receptors (ion channel linked receptors) trans membrane ion channels that open or close in response to the binding of a ligand (neurons, react quick to binding to ligands). There is a kink in the channel where a messenger, like a ligand or a neurotransmitter, can bind. Specific ligand/specific channel, lock/key or induced fit. Results in opening of the channel. Allosteric binding (the ligand binds to an allosteric site, a place away from the ion channel.
2. g protein coupled receptors - major membrane receptors
3. enzyme linked receptors - major membrane receptors