TEX15 Activators

Testis expressed 15 (TEX15) is a protein that is involved in the process of meiosis, the specialized cell division that results in the production of gametes (sperm and egg cells) with half the normal number of chromosomes. TEX15 is particularly important for the proper execution of meiotic recombination, a fundamental step required for genetic diversity and the accurate segregation of chromosomes.

In humans, the TEX15 gene is located on chromosome 8 and is predominantly expressed in the testes, which reflects its role in spermatogenesis-the process of sperm cell development. TEX15 functions as a key component within the meiotic DNA repair machinery, where it is necessary for the formation of double-strand breaks (DSBs) in DNA. These breaks are deliberately induced to initiate recombination between homologous chromosomes. The repair of these breaks by homologous recombination ensures the exchange of genetic material between paternal and maternal chromosomes and is critical for the genetic diversity of offspring.Mutations or deficiencies in TEX15 are associated with reproductive deficits. In males, TEX15 mutations can lead to non-obstructive azoospermia, a condition characterized by the absence of sperm in the semen, which is one of the causes of male infertility. TEX15 is therefore considered a candidate gene for investigations into cases of unexplained male infertility.