4261
This result was not attributable to lack of HLA -DQ alpha or -DQ beta transcription , because both transcripts were present in the CIITA -transfected hybrids , although at reduced levels.
 ( protein: CIITA, None) , ( cell line: CIITA -transfected hybrids, 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: CIITA, None) , ( cell line: CIITA -transfected hybrids, None) 