3802
Rilonacept is a dimeric fusion protein consisting of the ligand-binding domains of the extracellular portions of the human interleukin-1 receptor component ( IL-1R1 ) and IL-1 receptor accessory protein ( IL-1RAcP ) linked in-line to the Fc portion of human IgG1 that binds and neutralizes IL-1 .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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