1070
The STAT proteins utilized by IL-7 were identical to those induced by IL-2 and could be identified as various STAT 5 isoforms .
 protein: STAT proteins; protein: STAT 5 isoforms; protein: IL-7; protein: IL-2
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: STAT proteins; protein: STAT 5 isoforms; protein: IL-7; protein: IL-2