8911
Role of the transcription start site core region and transcription factor YY1 in Rous sarcoma virus long terminal repeat promoter activity .
 transcription factor YY1, Rous sarcoma virus long terminal repeat promoter
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 transcription factor YY1, Rous sarcoma virus long terminal repeat promoter