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Members of the myocyte - specific enhancer - binding factor 2 ( MEF2 ) family of transcription factors bind a conserved A / T - rich sequence in the control regions of numerous muscle - specific genes .
 GENE: myocyte - specific enhancer - binding factor 2; GENE: MEF2
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: myocyte - specific enhancer - binding factor 2; GENE: MEF2