7545
Moreover , expression of CBF1 in yeast was found to activate transcription of reporter genes containing the C - repeat / DRE as an upstream activator sequence but not mutant versions of the DNA element .
 CBF1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 CBF1