10221
Deletion of this region or internal deletion of the BOX1 motif abrogated IL-9 -induced cell proliferation and signal transduction.
 IL-9, BOX1 motif
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:
 IL-9, BOX1 motif