2199
A novel human homeobox gene , HB9 , was isolated from a cDNA library prepared from in vitro stimulated human tonsil B lymphocytes and from a human genomic library .
 ( cell type: vitro stimulated human tonsil B lymphocytes, None) , ( DNA: human genomic library, None) , ( DNA: cDNA library, None) , ( DNA: HB9, None) , ( DNA: human homeobox gene, 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:
 ( cell type: vitro stimulated human tonsil B lymphocytes, None) , ( DNA: human genomic library, None) , ( DNA: cDNA library, None) , ( DNA: HB9, None) , ( DNA: human homeobox gene, None) 