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. 1995 Aug 15;92(17):7976-80.
doi: 10.1073/pnas.92.17.7976.

A mutated intron sequence codes for an antigenic peptide recognized by cytolytic T lymphocytes on a human melanoma

P G Coulie  1 , F Lehmann, B Lethé, J Herman, C Lurquin, M Andrawiss, T Boon
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A mutated intron sequence codes for an antigenic peptide recognized by cytolytic T lymphocytes on a human melanoma

P G Coulie et al. Proc Natl Acad Sci U S A. .

Abstract

We have identified an antigen recognized on a human melanoma by autologous cytolytic T lymphocytes. It is encoded by a gene that is expressed in many normal tissues. Remarkably, the sequence coding for the antigenic peptide is located across an exon-intron junction. A point mutation is present in the intron that generates an amino acid change that is essential for the recognition of the peptide by the anti-tumor cytotoxic T lymphocytes. This observation suggests that the T-cell-mediated surveillance of the integrity of the genome may extend to some intronic regions.

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