Abstract
The mammalian Y chromosome encodes a testis-determining factor (termed TDF in the human), a master regulator of sex differentiation. Embryos with a Y chromosome develop testes and become males whereas embryos lacking a Y chromosome develop ovaries and become females. Expression of H–Y, a minor histocompatibil-ity antigen, may also be controlled by a gene on the Y chromosome, and it has been proposed that this antigen is the testis-determining factor1. We have tested the postulated identity of H–Y and TDF in the human. H–Y typing with T cells was carried out on a series of sex-reversed humans (XX males and XY females), each shown by DNA hybridization to carry part but not all of the Y chromosome. This deletion analysis maps the gene for H–Y to the long arm or centromeric region of the human Y chromosome, far from the TDF locus, which maps to the distal short arm.
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Simpson, E., Chandler, P., Goulmy, E. et al. Separation of the genetic loci for the H–Y antigen and for testis determination on human Y chromosome. Nature 326, 876–878 (1987). https://doi.org/10.1038/326876a0
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DOI: https://doi.org/10.1038/326876a0
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