7405
We have used this DNA fragment to isolate and purify a 60-kDa protein binding to this fragment and obtained its amino-terminal sequence , which was used to design degenerate probes to screen a cDNA library from THP-1 cells .
 THP-1 cells, degenerate probes, amino-terminal sequence, 60-kDa protein
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:
 THP-1 cells, degenerate probes, amino-terminal sequence, 60-kDa protein