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Various other genes, for example interleukin-1 and MHC class II genes , contain an octamer sequence in the promoter and are expressed in cells of both the immune and nervous systems .
 DNA: promoter; DNA: octamer sequence
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: promoter; DNA: octamer sequence