the beta-glucuronidase present in mouse 3t3 fibroblasts and mouse peritoneal macrophages was clearly identified by indirect immunofluorescence , using the antiserum and an fitc-conjugated second antibody , while human fibroblasts with normal levels of beta-glucuronidase activity did not fluoresce when tested with the same reagents .
C0020960
antiserum
C0003241
antibody