1818
Locus control regions ( LCRs ) are powerful assemblies of cis elements that organize the actions of cell-type-specific trans-acting factors .
 DNA: LCRs; DNA: Locus control regions; protein: cell-type-specific trans-acting factors; DNA: cis elements
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: LCRs; DNA: Locus control regions; protein: cell-type-specific trans-acting factors; DNA: cis elements