11914
The E2A-HLF (hepatic leukemia factor) oncoprotein , generated in pro-B lymphocytes by fusion of the trans-activation domain of E2A to the basic region/leucine zipper ( bZIP ) domain of HLF , functions as an anti-apoptotic transcription factor in leukemic cell transformation .
 HLF, basic region/leucine zipper ( bZIP ) domain, trans-activation domain, pro-B lymphocytes, bZIP, anti-apoptotic transcription factor, E2A-HLF (hepatic leukemia factor) oncoprotein, E2A
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:
 HLF, basic region/leucine zipper ( bZIP ) domain, trans-activation domain, pro-B lymphocytes, bZIP, anti-apoptotic transcription factor, E2A-HLF (hepatic leukemia factor) oncoprotein, E2A