What is HMB-45? HMB-45 (Human Melanoma Black-45) is an antibody that binds to a protein called gp100. This protein is expressed in cells called melanocytes and tumours made up of melanocytes, including melanoma. How is HMB-45 used in pathology? HMB-45 staining is commonly used by pathologists to aid in the diagnosis and classification of tumors …
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