1798
Expression of constitutively active MEK1 , the kinase that activates ERKs , or overexpression of ERK2 , but not JNK1 , inhibited Stat3 activation .
 GENE: MEK1; GENE: ERKs; GENE: ERK2; GENE: JNK1; GENE: Stat3
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: MEK1; GENE: ERKs; GENE: ERK2; GENE: JNK1; GENE: Stat3