exotoxin 中文意思是什麼
exotoxin
解釋
n. 名詞 【生物化學】（菌體）外毒素，外泌毒。-
Beta - exotoxin is an inhibitor of rna polymerase and acts competitively with atp in various biological processes
外毒素是rna聚合酶的抑制劑，在各個生化過程中與atp起競爭作用。 -
The toxin may be formed within the pathogen and released when it dies ( endotoxin ), or secreted through its cell wall ( exotoxin )
在病原體內形成，當病原體裂解時被釋放的毒素為內毒素；由病原體通過細胞壁向外分泌的毒素為外毒素。 -
Translocation from endocytic compartments to the cytosol is the essential and rate - limiting step in the intoxication process of most toxins such as ricin, diphtheria toxin, shiga toxin and pseudomonas exotoxin ( pe ). a number of these toxins are transported to trans - golgi network ( tgn ), and in many cases such transport to the tgn is required for the translocation and cytotoxicity. in deed, 5 % of the ricin endocytosed by cells has been shown to reach the tgn
蓖麻毒素進入細胞的機理不甚明了，一般認為是rtb先與細胞膜受體結合，主要經過受體介導的內吞作用進入吞噬體，然後沿著內體、高爾基體、內質網等逆向分泌途徑，有序地運輸到內質網，最後從內質網轉位進入細胞漿，在胞漿內攻擊核糖體，從而抑制蛋白質的合成，導致細胞死亡。
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