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As a first step in understanding the mechanism of decreased binding affinity in New World primates , we used reverse transcription-PCR to clone the glucocorticoid receptor from squirrel monkey liver and have compared the sequence to receptor sequences obtained from owl monkey liver , cotton-top tamarin B95-8 cells , and human lymphocytes .
 ( cell line: cotton-top tamarin B95-8 cells, None) , ( protein: glucocorticoid receptor, None) , ( cell type: human lymphocytes, 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:
 ( cell line: cotton-top tamarin B95-8 cells, None) , ( protein: glucocorticoid receptor, None) , ( cell type: human lymphocytes, None) 