27886
In vitro , NPAS4 forms functional dimers with bHLH - PAS domain co - factors ARNT , ARNT2 and ARNTL , transactivating both Cry1 and Nampt ovine promoter reporters .
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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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