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The predicted periplasmic domain of the PhoQ protein contained a markedly anionic domain that could interact with cationic proteins and that could be responsible for resistance to defensin .
 protein: periplasmic domain; protein: PhoQ protein; protein: cationic proteins; protein: defensin
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: periplasmic domain; protein: PhoQ protein; protein: cationic proteins; protein: defensin