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SPAG1, sperm associated antigen 1

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SPAG1, sperm associated antigen 1

  • The correlation of anti-sperm antibodies with cases of unexplained infertility implicates a role for these antibodies in blocking fertilization. Improved diagnosis and treatment of immunologic infertility, as well as identification of proteins for targeted contraception, are dependent on the identification and characterization of relevant sperm antigens. The protein expressed by this gene is recognized by anti-sperm agglutinating antibodies from an infertile woman. Furthermore, immunization of female rats with the recombinant human protein reduced fertility. This protein localizes to the plasma membrane of germ cells in the testis and to the post-acrosomal plasma membrane of mature spermatozoa. Recombinant polypeptide binds GTP and exhibits GTPase activity. Thus, this protein may regulate GTP signal transduction pathways involved in spermatogenesis and fertilization. Two transcript variants of this gene encode the same protein. [provided by RefSeq, Jul 2008]

  • Gene Synonyms (sperm-associated antigen 1, TPR-containing protein involved in spermatogenesis, epididymis secretory protein Li 268, infertility-related sperm protein Spag-1, tetratricopeptide repeat-containing protein, CILD28, CT140, HEL-S-268, HSD-3.8, SP75, TPIS,)
  • NCBI Gene ID: 6674
  • Species: Homo sapiens (Human)
  • UNIPROT ID#>>Q07617
  • View the NCBI Database for this Gene »

The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

Gene products are often involved in multiple pathways and networks within a living cell. Learn more about other interacting partners.

sperm associated antigen 1 interacts with:

The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

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The information on this page was collected from publicly accessible databases, and is periodically updated. Promega makes no claims to accuracy, or ownership of these genes.

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