2157
In this study we have identified the peroxisome proliferator-activated receptor ( PPAR ) as a new thyroid hormone receptor ( THR ) auxiliary nuclear protein , heterodimerizing with THR in solution.
 THR, peroxisome proliferator-activated receptor, thyroid hormone receptor, THR, thyroid hormone receptor ( THR ) auxiliary nuclear protein, PPAR
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:
 THR, peroxisome proliferator-activated receptor, thyroid hormone receptor, THR, thyroid hormone receptor ( THR ) auxiliary nuclear protein, PPAR