6253
The intracellular basic region / helix - loop - helix ( bHLH ) dioxin receptor mediates signal transduction by dioxin ( 2 , 3 , 7 , 8 - tetrachlorodibenzo - p - dioxin ) and functions as a ligand - activated DNA binding protein directly interacting with target genes by binding to dioxin response elements .
 GENE: basic region / helix - loop - helix ( bHLH ) dioxin receptor
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: basic region / helix - loop - helix ( bHLH ) dioxin receptor 
Answer:
 GENE: basic region / helix - loop - helix ( bHLH ) dioxin receptor