3901
Piccolo NuA4 - catalyzed acetylation of nucleosomal histones : critical roles of an Esa1 Tudor / chromo barrel loop and an Epl1 enhancer of polycomb A ( EPcA ) basic region .
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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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