13528
We first demonstrate, in human and mouse intraspecies hybrids , the coordinate suppression of MHC class II , Ii ( invariant chain ) and HLA-DM gene transcription , and the release of the silencing by the addition of interferon gamma .
 ( protein: invariant chain, None) , ( protein: Ii, None) , ( DNA: HLA-DM gene, None) , ( protein: interferon gamma, None) , ( cell line: human and mouse intraspecies hybrids, None) , ( protein: MHC class II, 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: invariant chain, None) , ( protein: Ii, None) , ( DNA: HLA-DM gene, None) , ( protein: interferon gamma, None) , ( cell line: human and mouse intraspecies hybrids, None) , ( protein: MHC class II, None) 