1569
Addition of KCl resulted in less DNA binding either due to blockage of DNA- receptor complex formation or disruption of the complexes.
 protein: receptor complex
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: receptor complex