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.

[EX Q]:  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 .
[EX A]: binding sites

[EX Q]:  The time course of heme oxygenase - 1 and - 2 , cytokine - induced neutrophil chemoattractant - 1 , and intercellular adhesion molecule - 1 was studied by Northern analysis .
[EX A]: adhesion molecule

[EX Q]:  As demonstrated by Western blotting , TGF - beta1 reduced the TPO - stimulated ERK1 / ERK2 and STAT5 phosphorylation in Mo - 7e and HEL cells .
[EX A]:
TGF - beta1