4463
The MEF - 2 proteins are a family of transcriptional activators that have been detected in a wide variety of cell types .
 GENE: MEF - 2 proteins
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: MEF - 2 proteins