1859
65 - kilodalton protein phosphorylated by interleukin 2 stimulation bears two putative actin - binding sites and two calcium - binding sites .
 interleukin 2, actin - binding sites
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 interleukin 2, actin - binding sites