In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.
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Question: To study the presence of estrogen - binding sites ( EBS ) in the synovial tissues of male and female patients with rheumatoid arthritis ( RA ) and in age - and sex - matched healthy controls .

Answer: binding sites

Question: These results demonstrate that glucocorticoids inhibit preactivated T cells by down - regulating signal transduction through IL - 2R .

Answer: IL - 2R

Question: Serum sex steroid and peptide hormone concentrations , and endometrial estrogen and progestin receptor levels during administration of human leukocyte interferon .

Answer:
human leukocyte interferon