3845
We recently reported that mouse ( CD . 1 strain ) peritoneal cells in culture synthesise and secrete a single chain precursor , pro - C5 ( MW approximately 210 , 000 ) , of the two - chain ( alpha chain , 125 , 000 and beta chain 83 , 000 MW ) C5 protein6 .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
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