6126
In addition, GST pull-down experiments demonstrated a physical interaction between human GATA-1 and C/EBPbeta .
 C/EBPbeta, GST, GATA-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/EBPbeta, GST, GATA-1