1881
Immunohistochemistry was performed with anti- ZEBRA , anti- EA -restricted, anti- VCA antibodies and in situ hybridization with BHLF1/NotI oligoprobes on tumour samples .
 ( protein: VCA, None) , ( protein: anti- ZEBRA, None) , ( protein: ZEBRA, None) , ( protein: EA, None) , ( protein: anti- EA -restricted, anti- VCA antibodies, 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: VCA, None) , ( protein: anti- ZEBRA, None) , ( protein: ZEBRA, None) , ( protein: EA, None) , ( protein: anti- EA -restricted, anti- VCA antibodies, None) 