Specificity: In Western blotting, this antibody recognizes proteins in a MW range of 265-400kDa, identified as different glycoforms of EMA (MUC1). This antibody reacts with the DTRP epitope within the tandem repeats. In immunohistochemical assays, it superbly stains routine formalin/paraffin carcinoma tissues. An antibody to EMA (MUC1) is useful as a pan-epithelial marker for detecting early metastatic loci of carcinoma in bone marrow or liver. Immunogen: Delipidated extract of human milk fat globule membranes