Tdrp, or Testis Development-Related Protein, is a nuclear factor potentially playing a crucial role in spermatogenesis. It might be involved in molecular mechanisms underlying this fundamental reproductive process. Genetic models, such as mouse models, are valuable for studying Tdrp's function.

In a Tdrp -deficient mouse model study [1], Tdrp -deficient mice showed no significant differences from wild-type littermates in testes and genitourinary tract development or sperm count. However, several sperm motility indexes like average path velocity (VAP), straight line velocity (VSL), and curvilinear velocity (VCL) were significantly decreased (p<0.05). The proportion of slow-velocity sperm also increased significantly (p<0.05). Fertility tests, though, showed no significant difference in average offspring amount (AOA), frequency of copulatory plug (FCP), and frequency of conception (FC). Additionally, TDRP1 could interact with PRM2, which might be the molecular mechanism of its nuclear function in spermatozoa.

In conclusion, Tdrp plays a role in sperm motility, as shown through the Tdrp -deficient mouse model. Although Tdrp deficiency alone was not sufficient to cause male infertility in mice, its role in sperm motility indicates its importance in male reproductive biology [1]. Also, genes TDRP, along with MC2R, FBXO25 and FBXL21, were found to be associated with longevity in Cane corso dogs, suggesting a potential role in the aging process [2].