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Inasmuch as these features implicate enhanced calcitriol action in gut and bone , we analyzed the vitamin D receptor ( VDR ) gene to ascertain whether an abnormality of this gene marks patients with intestinal hyperabsorption of calcium .
 DNA: vitamin D receptor ( VDR ) gene; protein: vitamin D receptor; protein: VDR
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: vitamin D receptor ( VDR ) gene; protein: vitamin D receptor; protein: VDR