1181
Nonetheless, a membrane-proximal region of human IL-2R beta ( Asn240-Leu335 ) was critical for JAK3 activation, and the amount of JAK3 present in activated IL-2 receptor complexes increased with time, suggesting that stabilization of JAK3 binding to the receptor complex relies on both IL-2R beta and IL-2R gamma .
 protein: IL-2; protein: membrane-proximal region; protein: IL-2R beta; protein: JAK3; protein: receptor complex; protein: Asn240-Leu335; protein: JAK3; protein: IL-2 receptor complexes; protein: IL-2R beta; protein: IL-2R gamma; 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-2; protein: membrane-proximal region; protein: IL-2R beta; protein: JAK3; protein: receptor complex; protein: Asn240-Leu335; protein: JAK3; protein: IL-2 receptor complexes; protein: IL-2R beta; protein: IL-2R gamma; protein: JAK3