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Collectively, we have identified the RALDH2 gene as a first example of direct transcriptional target genes regulated by TAL1 and LMO in T-ALL .
 ( DNA: transcriptional target genes, None) , ( protein: LMO, None) , ( DNA: RALDH2 gene, None) , ( protein: TAL1, None) , ( protein: RALDH2, 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:
 ( DNA: transcriptional target genes, None) , ( protein: LMO, None) , ( DNA: RALDH2 gene, None) , ( protein: TAL1, None) , ( protein: RALDH2, None) 