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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The human UTY gene encodes a novel HLA-B8-restricted H-Y antigen.

The mammalian Y chromosome encodes male-specific minor histocompatibility (H-Y) Ags that are recognized by female T cells in an MHC-restricted manner. Two human H-Y epitopes presented by HLA-A2 and HLA-B7, respectively, have been identified previously and both are derived from the SMCY gene. We previously isolated CD8+ CTL clones that recognized a male-specific minor histocompatibility Ag presented by HLA-B8. In contrast to the SMCY-encoded H-Y epitopes, the B8/H-Y Ag was not presented by fibroblasts from male donors, suggesting that it was encoded by a novel gene. We now report that the HLA-B8-restricted H-Y epitope is defined by the octameric peptide LPHNHTDL corresponding to aa residues 566-573 of the human UTY protein. Transcription of the UTY gene is detected in a wide range of human tissues, but presentation of the UTY-derived H-Y epitope to CTL by cultured human cells shows significant cell-type specificity. Identification of this CTL-defined H-Y epitope should facilitate analysis of its contribution to graft/host interactions following sex-mismatched organ and bone marrow transplantation.[1]


  1. The human UTY gene encodes a novel HLA-B8-restricted H-Y antigen. Warren, E.H., Gavin, M.A., Simpson, E., Chandler, P., Page, D.C., Disteche, C., Stankey, K.A., Greenberg, P.D., Riddell, S.R. J. Immunol. (2000) [Pubmed]
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