10778
We propose that BEAD-1 functions as a boundary that separates the TCR alpha/delta locus into distinct regulatory domains controlled by Edelta and the TCR alpha enhancer , and that it prevents Edelta from opening the chromatin of the TCR alpha joining gene segments for VDJ recombination at an early stage of T cell development .
 ( DNA: TCR alpha enhancer, None) , ( DNA: Edelta, None) , ( DNA: regulatory domains, None) , ( DNA: BEAD-1, None) , ( DNA: chromatin, None) , ( DNA: Edelta, None) , ( DNA: TCR alpha, None) , ( DNA: TCR alpha/delta locus, 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:
 ( DNA: TCR alpha enhancer, None) , ( DNA: Edelta, None) , ( DNA: regulatory domains, None) , ( DNA: BEAD-1, None) , ( DNA: chromatin, None) , ( DNA: Edelta, None) , ( DNA: TCR alpha, None) , ( DNA: TCR alpha/delta locus, None) 