12857
The chimeric oncoprotein E2A-HLF , generated by the t(17;19) chromosomal translocation in pro-B-cell acute lymphoblastic leukemia , incorporates the transactivation domains of E2A and the basic leucine zipper (bZIP) DNA-binding and protein dimerization domain of HLF ( hepatic leukemic factor ).
 ( protein: E2A-HLF, None) , ( DNA: t(17;19) chromosomal translocation, None) , ( protein: transactivation domains, None) , ( protein: hepatic leukemic factor, None) , ( protein: E2A, None) , ( protein: chimeric oncoprotein, None) , ( protein: HLF, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: E2A-HLF, None) , ( DNA: t(17;19) chromosomal translocation, None) , ( protein: transactivation domains, None) , ( protein: hepatic leukemic factor, None) , ( protein: E2A, None) , ( protein: chimeric oncoprotein, None) , ( protein: HLF, None) 