131
Truncation of TR alpha 1 at amino acid 210 prevented additional complex formation in the presence of NE without affecting DNA binding , suggesting that the carboxyl-terminus of the TRs is essential for interaction with nuclear proteins .
 protein: TRs; protein: carboxyl-terminus; protein: TR alpha 1; protein: nuclear proteins; protein: amino acid 210
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: TRs; protein: carboxyl-terminus; protein: TR alpha 1; protein: nuclear proteins; protein: amino acid 210