19762
Here , we took advantage of an in vitro histone methyltransferase assay employing a reconstituted yeast Set1 complex ( ySet1C ) and a recombinant chromatin template containing fully ubiquitylated H2B to gain valuable insights .
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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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