1448
Complex 2 corresponds to binding of transcription factor ( upstream stimulatory factor ) to an E-box motif in the 5' portion of the NIP region .
 DNA: E-box motif; protein: transcription factor; protein: Complex 2; protein: upstream stimulatory factor; protein: NIP; DNA: NIP region; DNA: 5' portion
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: E-box motif; protein: transcription factor; protein: Complex 2; protein: upstream stimulatory factor; protein: NIP; DNA: NIP region; DNA: 5' portion