3648
During hexamethylene bisactamide ( HMBA ) - induced differentiation of murine erythroleukemia ( MEL ) cells erythroid genes are transcriptionally activated while c - myb and several other nuclear proto - oncogenes are down - regulated .
 GENE: c - myb
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: c - myb