13846
PIEC clones stably transfected with one of these constructs showed up to 99% suppression of SLA-DR and SLA-DQ antigen induction and marked suppression of SLA-DRA mRNA induction .
 ( protein: SLA-DQ, None) , ( RNA: SLA-DRA mRNA, None) , ( cell line: PIEC clones, None) , ( protein: SLA-DR, None) , ( protein: SLA-DRA, 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: SLA-DQ, None) , ( RNA: SLA-DRA mRNA, None) , ( cell line: PIEC clones, None) , ( protein: SLA-DR, None) , ( protein: SLA-DRA, None) 