Receptors, Transmitters, Enzymes Flashcards
agonist
a substance that have the same effect on a receptor as the mediator or transmitter
antagonist
a substance that inhibits the effect of a mediator or transmitter at the receptor
nicotinic acetylcholine receptor
ACh receptor at which nicotine mimics the effect of acetylcholine
specificity
due to its spatial structure, a receptor, enzyme or transporter molecule can only bind a limited number of substrate molecules
muscarinic acetylcholine receptor
ACh receptor at which muscarine mimics the effect of acetylcholine
colocalization
simultaneous presence of two transmitters or a transmitter and a neuromodulator in the same synaptic
quantal release
transmitter substances are released in small packages (quanta) from the synaptic terminal
protein kinase
enzyme catalyzing the transfer of a phosphate group from ATP to a protein
CoA, coenzyme-A
coenzyme built around the adenine nucleotide
NAD
nicotinamide adenine dinucleotide, a coenzyme
FAD
flavin-adenin-dinucleotid, coenzyme