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The results indicate that DNA methylation , chromatin structure , and transactivation at an Sp1 site contribute to the highly restricted expression of this myelomonocytic lineage specific gene .
 myelomonocytic lineage specific gene, Sp1, Sp1 site, chromatin
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:
 myelomonocytic lineage specific gene, Sp1, Sp1 site, chromatin