2271
Purified phosphorylated PhoP ( PhoPP ) had a half - life of approximately 2 . 5 h , which was reduced to about 15 min by addition of the same molar amount of * PhoR ( the cytoplasmic region of PhoR ) .
 GENE: PhoP; GENE: PhoPP; GENE: * PhoR; GENE: PhoR
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: PhoP; GENE: PhoPP; GENE: * PhoR; GENE: PhoR