1553
Gel shift assays and site-directed mutagenesis studies defined essential GATA and Ets binding motifs 93 and 150 nucleotides upstream of the transcription start site , a finding which further substantiates these elements as important determinants of megakaryocytic gene expression .
 DNA: GATA; DNA: Ets binding motifs; DNA: transcription start site; DNA: 93 and 150 nucleotides upstream
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 DNA: GATA; DNA: Ets binding motifs; DNA: transcription start site; DNA: 93 and 150 nucleotides upstream