Tyrosinase is a copper-glycoenzyme involved in the production of melanin pigments, including both eumelanin and pheomelanin. As a marker of melanocytic lineage, tyrosinase is localized to melanocytes which can be found on the dermal/epidermal junction of normal skin. It is not detected in other normal cells. Results aid in the classification of primary and metastatic malignant melanomas. The cellular localization of tyrosinase is cytoplasmic and/or perinuclear.
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Product Details
Features
Excellent specificity
High lot to lot consistency
Optimized for immunohistochemistry (IHC) with validated protocols
Certified manufacturing facilities guarantee full quality control
More than 50 years experience ensuring quality and innovation in antibodies and reagents
Specifications
Application
Formalin
HIER
Clone
T311
Code Number
M3623
Immunogen
Purified recombinant unglycosylated tyrosinase protein consisting of 452 amino acids of the 511 amino acid mature human tyrosinase protein (1). See package insert for reference(s).
Isotype
IgG2a, kappa
Reagent Provided
Monoclonal mouse antibody provided in liquid form as tissue culture supernatant in 0.05 mol/L Tris-HCl, pH 7.2 and 0.015 mol/L sodium azide. This product contains stabilizing protein.
Solutions
Concentrate
Species
Mouse Anti-Human
Specificity
Immunoblotting was performed using L-cells transfected with the tyrosinase gene and on four cell lines that express tyrosinase mRNA: SK-MEL-13, SK-MEL-19, SK-MEL-30 and SK-MEL-37 (1). Consistent with previous reports, a cluster of proteins ranging from 70-80 kDa was recognized by clone T311 in immunoblots of all five cell lines (1). An additional 55 kDa band was stained in blots from cell lines that are strongly reactive (SK-MEL-19) (1). Furthermore, immunoblots of untransfected L-cells and three cell lines that do not express tyrosinase mRNA (MZ2-MEL3.1, SK-MEL-187 and MZ2-MEL2.2) were negative with clone T311 (1). L-cells transfected with the tyrosinase-related protein 1, TRP-1(gp75), were also unreactive with clone T311 in immunofluorescence and immunoblotting assays, indicating this antibody does not cross-react with the melanosome-associated protein, TRP-1(gp75) (1). See package insert for reference(s).
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