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These common sequence variants were not found within three message-destabilizing elements that we mapped within the 3'-UTR of the vitamin D receptor mRNA .
 message-destabilizing elements, vitamin D receptor mRNA, 3'-UTR
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:
 message-destabilizing elements, vitamin D receptor mRNA, 3'-UTR