instruction:
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.
question:
 METHODS : Levels of sIL - 2R were measured simultaneously in plasma and pleural fluid in 111 patients with pleural effusions of unknown causes .
answer:
sIL - 2R


question:
 Serum creatinine kinase activity was 7 , 800 - 17 , 500 U / l , making acute muscle damage likely , probably rhabdomyolysis .
answer:
creatinine kinase


question:
 Taken together , these results indicate that ICSBP and PU . 1 are critical elements for IL - 18 gene expression .
answer:

PU . 1