x
uploads/receptor site.jpg

receptor site 【生物學】受體位點〔藥物等的作用在細胞中見效的部位〕。

recess

So the results indicate that the two mutants have no significant difference in the toxicity of inhibiting mammal neuron sodium channels , and ala20 or ser20 was not the key residue . the two peptide neurontoxins inhibite mammalian voltage - gated sodium channels through a novel mechanism distinct from other known spider toxins such as 5 - actxs , - agatoxins i - vi which banded receptor site 3 to slow the inactive time course of sodium channels . we suggest that hntx - v maybe target the site 1 of sodium channels in a similar manner to - conotoxins and ttx 同時兩種海南捕鳥蛛毒素從影響ttx一s鈉通道的方式上來看,與其它已知膚類蜘蛛毒素如6一actxs等通過作用于位點3引起延緩鈉通道的失活時間存在明顯不同,我們推測hntx一iv和iintx一v可能是以一種新的不同于其它蜘蛛毒素的方式來影響鈉通道的,而ttx一s鈉通道位點1則很有可能便是它們的作用位點,與ttx和林一eonotoxins相似。

The release of neurotransmitter molecules from one neuron and their attachment to receptor sites on another keep a nerve impulse moving 神經遞質分子從一個神經原釋放后,附著到另一個接受點,令神經沖動保持運動的狀態。