14802
This study used a high titer anti-38,000-M(r) serum to screen bacteriophage lambda cDNA expression libraries and identified human islet and placental clones encoding jun-B , the nuclear transcription protein , of predicted 38,000 M(r).
 ( protein: nuclear transcription protein, None) , ( cell line: placental clones, None) , ( protein: jun-B, None) , ( DNA: bacteriophage lambda cDNA, None) , ( cell type: human islet, 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: nuclear transcription protein, None) , ( cell line: placental clones, None) , ( protein: jun-B, None) , ( DNA: bacteriophage lambda cDNA, None) , ( cell type: human islet, None) 