14482
However, a hybrid receptor composed of the extracellular and transmembrane regions of the human type II interleukin-1 fused to the cytoplasmic domain of the human type I IL-1R was capable of transducing a signal across the membrane resulting in a pattern of gene activation identical to that mediated by the type I IL-1R .
 protein: human type I IL-1R; protein: IL-1R; protein: IL-1R; protein: human type II interleukin-1; protein: type I IL-1R; protein: cytoplasmic domain
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: human type I IL-1R, IL-1R, IL-1R, human type II interleukin-1, type I IL-1R, cytoplasmic domain 
Answer:
 protein: human type I IL-1R; protein: IL-1R; protein: IL-1R; protein: human type II interleukin-1; protein: type I IL-1R; protein: cytoplasmic domain