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Recent progress in understanding the regulation of the phagocyte NADPH oxidase by the Rac GTP-binding proteins provides a basis for defining the operational characteristics of one such phagocyte system .
 protein: phagocyte NADPH oxidase; protein: Rac GTP-binding proteins
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: phagocyte NADPH oxidase; protein: Rac GTP-binding proteins