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Recent evidence for a preferential coupling of JAK3 to interleukin-2 receptor-gamma ( IL-2R gamma ) and JAK1 to IL-2R beta supports the concept of heterotrans-activation of JAK1 and JAK3 caused by IL-2 -induced heterodimerization of their receptor partners .
 protein: IL-2R beta; protein: IL-2R gamma; protein: JAK3; protein: JAK1; protein: interleukin-2 receptor-gamma; protein: IL-2; protein: JAK1; protein: JAK3
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: IL-2R beta; protein: IL-2R gamma; protein: JAK3; protein: JAK1; protein: interleukin-2 receptor-gamma; protein: IL-2; protein: JAK1; protein: JAK3