20275
Here , we identify a protein interaction domain in BCL6 corepressor , BCOR , which binds the RING finger - and WD40 - associated ubiquitin - like ( RAWUL ) domain of PCGF1 ( NSPC1 ) and PCGF3 but not of PCGF2 ( MEL18 ) or PCGF4 ( BMI1 ) .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None