14483
Our results indicated that the extracellular domain of the type II IL-1R was capable of functionally interacting with interleukin-1 and transmitting the resulting signal to a heterologous cytoplasmic domain .
 protein: interleukin-1; protein: type II IL-1R; protein: IL-1R; protein: heterologous cytoplasmic domain; protein: extracellular 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: interleukin-1, type II IL-1R, IL-1R, heterologous cytoplasmic domain, extracellular domain 
Answer:
 protein: interleukin-1; protein: type II IL-1R; protein: IL-1R; protein: heterologous cytoplasmic domain; protein: extracellular domain