492
The 210 kDa precursor is converted slowly ( t 1 / 2 = 2 h ) by proteolytic processing into a 125 kDa ( alpha ' ) and 83 kDa ( beta ' ) species .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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