释义 |
DictionarySeesubstance PTAC1
TAC1 A gene on chromosome 7q21-q22 that encodes four different tachykinins—substance P, neurokinin A, neuropeptide K and neuropeptide gamma—which are thought to function as neurotransmitters, interacting with nerve receptors and smooth muscle cells, inducing behavioural responses and acting as vasodilators and secretagogues. |