Objective To express the nontoxic mutant CRM197 of diphtheria toxin and study its effect as a carrier protein.

目的表达白喉毒素无毒变异体CRM197，并考察其载体作用。

youdao

Objective To express the nontoxic mutant CRM197 of diphtheria toxin and study its effect as a carrier protein.

目的表达白喉毒素无毒变异体CRM197，并考察其载体作用。

youdao