has_participant has participant response to nicotine Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nicotine stimulus. biological_process GO:0035094 response to chemical D(2) dopamine receptor (human) caspase-3 (human) sodium/potassium-transporting ATPase subunit alpha-2 (human) sodium-dependent dopamine transporter (human)