Pan Melanoma antibody

Antigen: Pan Melanoma

Clonality: Monoclonal (HMB45-M2-7C10-M2-9E3-T311)

Host: Mouse

Reactivity: Human

Application: Immunohistochemistry (IHC)

Catalog no.: ABIN197726

Additional Information

Immunogen: Pigmented melanoma metastases from lymph nodes (HMB45). Recombinant human MART-1 protein (MART1). Recombinant tyrosinase protein (Tyrosinase).

Clone: HMB45-M2-7C10-M2-9E3-T311

Specificity: The HMB45 clone reacts with a neuraminidase-sensitive oligosaccharide side chain of a glycoconjugate present in immature melanosomes. The HMB45-reactive antigen is present in cutaneous melanocytes, prenatal and infantile retinal pigment epithelium and melanoma cells and is thought to be oncofetal in nature. This antibody has been shown to label the majority of melanomas. The MART-1/Melan A recognizes a protein of 18kDa, identified at MART-1 (Melanoma Antigen Recognized by T cells 1) or Melan-A. Melan-A is a useful addition to melanoma panels as it is apparently specific for melanocytic lesions. Studies have also shown that MART-1 is more sensitive than HMB45 when labeling metastatic melanomas. Tyrosinase is a key enzyme involved in the initial stages of melanin biosynthesis. Studies have shown Tyrosinase to be a more sensitive marker when compared to HMB45 and MART-1. It has also shown to label a higher percentage of desmoplastic melanomas than HMB45. The combination of HMB45 and the MART-1 (cocktail) and Tyrosinase make this quadruple antibody cocktail a first-order pan melanoma screener.

Application Details

Application Notes: Staining Protocol: We suggest an incubation period of 30 minutes at room temperature. However, depending upon the fixation conditions and the staining system employed, optimal incubation should be determined by the user. Formalin fixed paraffin embedded tissue sections require high temperature antigen unmasking with 10 mM citrate buffer, pH 6.0 prior to immunostaining. Positive Control: Metastatic melanoma in lymph node. Cellular localization: Cytoplasmic

Concentration: 1 to 4 ug/ml

Buffer: This antibody has been pretitered and quality controlled to work on formalin-fixed paraffin-embedded as well as acetone fixed cryostat tissue sections. No further titration is required.

Storage: Store the antibody at 2-8o c. Do not use it beyond the expiration date stated on the label.

Restrictions: For Research Use. CE-certified for In Vitro Diagnostics (IVD) Use in the European Union