1178
It contains a basic helix-loop-helix ( bHLH ) motif contiguous with a Per-Arnt-Sim (PAS) homology region .
 ( protein: basic helix-loop-helix ( bHLH ) motif, None) , ( protein: bHLH, None) , ( protein: Per-Arnt-Sim (PAS) homology region, None) , ( protein: helix-loop-helix, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: basic helix-loop-helix ( bHLH ) motif, None) , ( protein: bHLH, None) , ( protein: Per-Arnt-Sim (PAS) homology region, None) , ( protein: helix-loop-helix, None) 