5425
Gel - shift assays with nuclear extracts and oligonucleotide sequences spanning the 0 . 125 - kb promoter region detected an ETS - immunoreactive complex , present most abundantly in cells overexpressing HER2 , whose high - affinity binding depended on the GAGGAA response element .
 ETS, HER2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 ETS, HER2