1683
These findings suggest a molecular mechanism of positive regulation of PAFR gene expression by PAF through NF-kappa B , possibly by a phosphorylation reaction involving protein kinase C by PAF .
 ( protein: PAF, None) , ( protein: NF-kappa B, None) , ( protein: PAFR, None) , ( protein: PAF, None) , ( protein: protein kinase C, 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: PAF, None) , ( protein: NF-kappa B, None) , ( protein: PAFR, None) , ( protein: PAF, None) , ( protein: protein kinase C, None) 