8929
Transcriptional regulation of the alpha2 integrin gene in cells undergoing megakaryocytic differentiation requires a core promoter between bp -30 and -92, a silencer between bp -92 and -351, and megakaryocytic enhancers in the distal 5' flank .
 megakaryocytic enhancers, core promoter, distal 5' flank, silencer, alpha2 integrin gene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 megakaryocytic enhancers, core promoter, distal 5' flank, silencer, alpha2 integrin gene