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We used deletion analysis and transfection assays with reporter gene constructs to examine the transcription control elements in the 5' flanking region of the human EpoR gene .
 human EpoR gene, transcription control elements, 5' flanking region, EpoR, reporter gene constructs
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:
 human EpoR gene, transcription control elements, 5' flanking region, EpoR, reporter gene constructs