Melan-A (MART-1) [A103], a melanoma-specific antigen, is a transmembrane protein and a melanocyte differentiation marker recognized by cytotoxic T lymphocytes. Melan-A is expressed in skin, in the majority of melanocytes and in renal angiomyolipomas.15-17
S100 recognizes proteins of 21-24 kDa, identified as the A and B subunits of S100 protein. S100 belongs to the family of calcium binding proteins such as calmodulin and troponin C. S100A is composed of an alpha and beta chain whereas S100B is composed of two beta chains. S100 protein is expressed in Schwannomas, ependymomas, […]
The S100 antibody (21-24kDa) is identified as A and B subunits of S100 protein. S100 belongs to the family of calcium binding proteins such as calmodulin and troponin C. S100A is composed of alpha and beta chains whereas S100B is composed of two beta chains. Antibody S100 stains melanocytes, schwannomas, peripheral neural tissue and astrocytes, […]
MART-1 recognizes a protein of 18 kDa, identified at MART-1 (Melanoma Antigen Recognized by T cells).1 MART-1 is a useful addition to melanoma panels as it is apparently specific for melanocytic lesions.1,2 Studies have shown that MART-1 is more sensitive than HMB45 when labeling metastatic melanomas.3 This MART-1 cocktail does not stain steroid tumors. Tyrosinase […]
Pan Melanoma Antibody +S100 (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. MART-1 (M2-7C10 + M2-9E3) recognizes a protein of […]
Pan Melanoma Antibody + Ki-67 serves as a tool to identify the proliferation rate of melanocytic lesions in cases in which melanocytes are sparse; there are dense lymphocytic infiltrates; and melanocytes are admixed with fibroblasts. In general, a higher proliferative fraction is seen in melanoma than in melanocytic nevi. There are many types of nevi, […]
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. It is also thought to be oncofetal in nature. This antibody has been shown to label the majority of melanomas. The […]
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PRAME is located on chromosome 22q11.22 and encodes a 509 amino acid protein. PRAME is an autosomal cancer-testis antigen (CTA) gene which has been shown to be expressed in melanoma, various nonmelanocytic malignant neoplasms, including non-small cell lung cancer, breast carcinoma, renal cell carcinoma, ovarian carcinoma, leukemia, synovial sarcoma, and myxoid liposarcoma. Normal healthy tissues […]



![Melanoma Stained with S100 Protein [4C4.9] (M)](https://biocare.net/wp-content/uploads/3237-1.jpg)





![Melanoma stained with PRAME [EPR20330] antibody](https://biocare.net/wp-content/uploads/3252.jpg)