5053
When fused to GAD , the C-terminal region of Ku was able to activate transcription via TRE-1 but this activation was not dependent on Tax .
 C-terminal region, Ku, Tax, GAD, TRE-1
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:
 C-terminal region, Ku, Tax, GAD, TRE-1