can be located at the cell surface or inside the cell (9)
domain on outside of cell binds ligand specifically, causes a conformational change, opening the channel, flooding in of ions triggers next step in biological process (3, 7, 9)
rapid increase in intracellular cAMP concentration, involved in pain control, sleep/wake control and mood (9)
receiving signals (6)
responses (7)
secreted by one cell and detected by another cell that expresses the corresponding receptor (7)
signal transduction (6)
steroid hormone (ligand) enter the cell, complex formed between the hormone and the steroid hormone receptors, receptor dissociates from the chaperone, receptor enters the nucleus, acts as transcription factor (11, 8)
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