The refined exotoxin A toxicity lethal test of mice, shows the its effect is raised to 1:64, also approaching document value, LD50>300 LD50/ml, Disc-PAGE shows it has a single cont-eni, which is composed by 17 Amino acid includin asparagic acid.
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- 精制外毒素A小鼠毒性致死试验提高到1:64；接近文献值.；LD50>300LD50/ml；园盘电泳分析为单一成份；由天门冬氨酸等17种氨基酸组成
