10009
Northern blot analysis of SR-BP gene expression revealed a single transcript of 2 kilobases which was widely expressed among organs , with the highest abundance in liver and the lowest abundance in brain .
 ( RNA: 2 kilobases, None) , ( protein: SR-BP, 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: 2 kilobases, None) , ( protein: SR-BP, None) 