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To determine if New World primates express an inhibitor that influences glucocorticoid receptor ( GR ) binding characteristics , we examined [3H]dexamethasone binding in cytosol prepared from B95-8 lymphoid cells , derived from the cotton top tamarin ( Saguinus oedipus ), in combination with cytosol prepared from human or rat tissues .
 ( protein: glucocorticoid receptor, None) , ( protein: GR, None) , ( cell line: B95-8 lymphoid cells, 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: glucocorticoid receptor, None) , ( protein: GR, None) , ( cell line: B95-8 lymphoid cells, None) 