11410
Since MEK acts as a cytoplasmic anchor for the ERKs , the lack of a MEK interaction resulted in the aberrant nuclear localization of ERK2 - Delta19 - 25 mutants in serum - starved cells .
 MEK, ERKs, MEK, ERK2, Delta19 - 25
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 MEK, ERKs, MEK, ERK2, Delta19 - 25