13794
An association between hSIE and Stat-3 after MHC-I ligation was directly demonstrated by precipitating Stat-3 from nuclear extracts with biotinylated hSIE probe and avidin -coupled agarose .
 Stat-3, hSIE, MHC-I, Stat-3, hSIE probe, avidin, hSIE
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:
 Stat-3, hSIE, MHC-I, Stat-3, hSIE probe, avidin, hSIE