If the cholera toxin is present, the toxin binds to the dextran because its chemical structure is similar to the cholera toxinreceptor (GM1) found on the surface of cells in a victim's gut.
Mutations have altered the snake's receptor in such a way that, because the toxin cannot bind to the receptor, the acetylcholine function is undisturbed.
基因突变改变了这种蛇的受体，使得毒素无法致盲受体，乙酰胆碱的功能亦未受影响。
3
AIM: to obtain the high expression of the gene coding for clostridium difficile toxin a receptor binding zone.