1787
Primary among the response pathways involved are NFE2L2 ( Nrf2 ) , NFE2L1 ( Nrf1 ) , p53 , heat shock factor and the unfolded protein response .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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