17782
Mutation of the PC cleavage site K70R71 , the dibasic R17R18 site within glucagon or the alpha - helix of glucagon , all significantly affected the sub - cellular localisation of proglucagon .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None