12488
In this study three novel clones were constructed in which the ZEBRA activation region was repositioned to the carboxy terminus of the protein.
 carboxy terminus, ZEBRA activation region, ZEBRA
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:
 carboxy terminus, ZEBRA activation region, ZEBRA