7543
A region between-3134 and -2729 bp upstream from the transcription site of the human pro-interleukin 1beta ( proIL-1beta ) gene was identified as an LPS-responsive enhancer element .
 transcription site, human pro-interleukin 1beta, proIL-1beta, human pro-interleukin 1beta ( proIL-1beta ) gene, LPS-responsive enhancer element
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:
 transcription site, human pro-interleukin 1beta, proIL-1beta, human pro-interleukin 1beta ( proIL-1beta ) gene, LPS-responsive enhancer element