abstract |
(57) [Summary]nThe present invention relates to a DNA encoding an antigen peptide which is a mammalian Sp17 protein, particularly a human Sp17 protein, or a fragment thereof, and the antigen fragment. These proteins and peptides are useful in immunocontraceptives and / or in the diagnosis of autoimmune infertility. Non-toxic host cells expressing antigenic proteins or peptides and useful as immunocontraceptives have also been disclosed. |