12677
We cloned and characterized a fork head cDNA from human T helper cell mRNA using differential display RT-PCR .
 ( RNA: human T helper cell mRNA, None) , ( DNA: fork head cDNA, 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:
 ( RNA: human T helper cell mRNA, None) , ( DNA: fork head cDNA, None) 