986
Serum induction of a MEF2 reporter gene was not observed in a line of NIH 3T3 cells which contain low MEF2 site binding activity .
 GENE: MEF2 reporter gene; GENE: MEF2 site
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: MEF2 reporter gene; GENE: MEF2 site