Tyrosinase is the principal enzyme required for the synthesis of melanin pigment by melanocytes in mammals. It is also a marker of melanocyte differentiation, and is commonly expressed by malignant melanoma. Tyrosinase immunoreactivity studies in formalin-fixed, paraffin-embedded tissues have demonstrated that the T311 antibody is a specific, sensitive marker for the detection of melanocytic lesions. Immunoreactivity has also been shown to correlate inversely with clinical stage of melanoma progression. Because tyrosinase is recognized by cytotoxic T cells from melanoma patients, it has been proposed as an immunotherapeutic target for melanoma vaccines. The molecular mass of tyrosinase is 60-75kD. However, the processed, glycosylated forms of the protein found in melanosomes have been reported at 70-75kD. The T311 antibody identifies a cluster of proteins at 70-80kD, consistent with previous reports. Applications: Suitable for use in Immunohistochemistry and Western Blot. Other applications have not been tested. Recommended Dilution: Immunohistochemistry: 1ug/ml Western Blot: 1-5ug/ml Note: Heat induced epitope retrieval (HIER) with EDTA, pH 8.0, prior to staining, is recommended for optimal immunohistochemical results with paraffin-embedded tissues. Optimal dilutions to be determined by the researcher. Storage and Stability: Store product at 4C if to be used immediately within two weeks. For long-term storage, aliquot to avoid repeated freezing and thawing and store at -20C. Aliquots are stable at -20C for 12 months after receipt. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Note: Sodium azide is a potent inhibitor of peroxidase and should not be added to HRP conjugates. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Note: Applications are based on unconjugated antibody.
Clonality:
Monoclonal
Clone Designation:
[T311]
Isotype:
IgG2a
Purity:
Purified by Protein A chromatography
Form:
Supplied as a liquid in PBS, pH 7.2. No preservatives added. Labeled with horseradish peroxidase (HRP).
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