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GC-box is a binding site for constitutively bound proteins .
 protein: constitutively bound proteins; DNA: GC-box; DNA: binding site
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: constitutively bound proteins, GC-box, binding site 
Answer:
 protein: constitutively bound proteins; DNA: GC-box; DNA: binding site