when rat hepatocytes were labeled with 35 [ s ] methionine in the presence of 0.4 mm rhodamine 123 , the precursor to transhydrogenase was found to have a half-life in the cytoplasm of 15 minutes as opposed to a half-life of 1-2 minutes when cells were radiolabeled in the absence of the dye .
C0010834
cytoplasm
C0007634
cells