9338
We have identified a novel gene , GR6 , located within the leukemia breakpoint region of 3q21 , that is normally expressed in early fetal development but not in adult peripheral blood .
 3q21, novel gene, GR6
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:
 3q21, novel gene, GR6