Profile: Signet Laboratories, Inc. is a medical diagnostics/research company specializing in the development of monoclonal antibodies & diagnostics assays for cancer, infectious disease & neurodegenerative disease. Our prostate-63 diagnostic assay kit includes pre-diluted p63 antibody, secondary antibodies and ancillaries. Our 3F4 prion antibody (vCJD), biotinylated is a monoclonal antibody that detects amino acid residues 109-112 of prion protein (PrP) from human, hamsters and felines.