1208
We expressed these factors in S. cerevisiae and observed greater than 5-fold stimulation of a lacZ reporter gene only with Oct-2 .
 Oct-2, lacZ reporter gene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 Oct-2, lacZ reporter gene