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Precursors of 1,25(OH)2D3 enhance HIV-1 replication in proportion to their affinity for the 1,25(OH)2D3 intracellular receptor , suggesting that 1,25(OH)2D3 influences HIV-1 replication by mechanisms involving this receptor.
 protein: 1,25(OH)2D3 intracellular receptor
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:
 protein: 1,25(OH)2D3 intracellular receptor