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Cotransfection of JAK3 with IL-4 Stat into COS-7 cells produced an intracellular activity which bound the same IFN-gamma activation site-like sequence and comigrated with IL-4 NAF in electrophoretic mobility shift assay .
 IL-4, IL-4 Stat, COS-7 cells, IL-4 NAF, IL-4, JAK3, IFN-gamma activation site-like sequence
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 IL-4, IL-4 Stat, COS-7 cells, IL-4 NAF, IL-4, JAK3, IFN-gamma activation site-like sequence