20277
The structure of BCOR PUFD bound to PCGF1 reveals that ( 1 ) PUFD binds to the same surfaces as observed for a different Polycomb group RAWUL domain and ( 2 ) the ability of PUFD to discriminate among RAWULs stems from the identity of specific residues within these interaction surfaces .
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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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