Pulse-chase results showed that no 35 S-AT protein could be detected in ATM culture supernatant. At 0 min chase time, 35 S-AT protein of ATM cell lysate was only 27 8% that of ATN.

• 脉冲追踪试验发现 ,在ATM转染的COS7细胞培养上清液中 ,检测不到3 5S标记的AT蛋白 ,在chase 0min时 ,ATM细胞内3 5S标记的AT蛋白只有ATN的 2 7 8%25 ;