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A specific melanoma antigen protein derived from a patient (NA17) with cutaneous melanoma metastases. When administered in a vaccine formulation, NA17-A antigen may stimulate a cytotoxic T lymphocyte (CTL) response against tumors that express this antigen, which may result in a reduction in tumor size. The NA17-A antigen is part of the enzyme N-acetyl glucosaminyl-transferase V (GnT-V). Approximately half of melanomas have been found to express significant levels of this atypical protein, which is not expressed by normal tissues. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C37450\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C37450\' NCI Thesaurus)
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