1299
The activity of dihydropyrimidine dehydrogenase ( DPD ), the initial enzyme of pyrimidine (and FUra ) catabolism , in peripheral blood mononuclear cells was measured in each subject by a specific radiometric assay using FUra as the substrate.
 protein: DPD; cell type: peripheral blood mononuclear cells; protein: enzyme; protein: dihydropyrimidine dehydrogenase
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: DPD; cell type: peripheral blood mononuclear cells; protein: enzyme; protein: dihydropyrimidine dehydrogenase