1736
We delineated an element conferring both DNA binding by the receptor in vitro and 1,25(OH)2D3 -mediated repression in vivo to a short 40-bp region encompassing an important positive regulatory element , NF-AT-1 , which is bound by a T-cell-specific transcription factor , NFATp , as well as by AP-1 .
 DNA: 40-bp region; protein: AP-1; protein: T-cell-specific transcription factor; DNA: positive regulatory element; protein: NFATp; DNA: NF-AT-1
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: 40-bp region; protein: AP-1; protein: T-cell-specific transcription factor; DNA: positive regulatory element; protein: NFATp; DNA: NF-AT-1