Barbieri J T, Rappuoli R, Collier R J
Infect Immun. 1987 May;55(5):1321-3. doi: 10.1128/iai.55.5.1321-1323.1987.
The S-1 subunit of pertussis toxin was expressed as a fusion protein in a strain of Escherichia coli deficient in protein degradation. The fusion protein reacted with anti-pertussis toxin antibody, and, like authentic pertussis toxin, it ADP-ribosylated a 41,000-molecular-weight membrane protein from human erythrocytes.
百日咳毒素的S-1亚基在一株缺乏蛋白质降解能力的大肠杆菌中表达为融合蛋白。该融合蛋白与抗百日咳毒素抗体发生反应,并且与天然百日咳毒素一样,它能使来自人红细胞的一种分子量为41,000的膜蛋白发生ADP核糖基化。