10739
To investigate the molecular mechanisms of this Tax - mediated inhibition , we analyzed its effect on the transcriptional activity of the myogenic MyoD protein , which was used as a paradigm of bHLH factors .
 GENE: Tax; GENE: MyoD protein; GENE: bHLH factors
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: Tax, MyoD protein, bHLH factors 
Answer:
 GENE: Tax; GENE: MyoD protein; GENE: bHLH factors