30059
Using E . coli cells with a special tRNA / aminoacyl - tRNA synthetase pair , two PPAR alpha variants were prepared , in which Leu - 258 or Phe - 273 were site - specifically replaced by the genetically encoded photo - reactive amino acid para - benzoylphenylalanine ( Bpa ) .
 Chemical: Leu; Chemical: Phe; Chemical: amino acid; Chemical: para - benzoylphenylalanine; Chemical: Bpa
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Leu, Phe, amino acid, para - benzoylphenylalanine, Bpa 
Answer:
 Chemical: Leu; Chemical: Phe; Chemical: amino acid; Chemical: para - benzoylphenylalanine; Chemical: Bpa