The STAG3 antibody targets the STAG3 protein, a subunit of the cohesin complex, which plays critical roles in chromosome segregation, DNA repair, and transcriptional regulation during cell division. Cohesin is essential for sister chromatid cohesion, ensuring accurate chromosome separation in mitosis and meiosis. STAG3. specifically expressed in germ cells, is vital for meiotic cohesion and fertility. Mutations in the *STAG3* gene are linked to human reproductive disorders, including premature ovarian insufficiency (POI) and non-obstructive azoospermia (NOA), highlighting its importance in gametogenesis.
STAG3 antibodies are widely used in reproductive biology research to investigate protein expression, localization, and function in germ cells. They enable detection of STAG3 in tissues (e.g., testes, ovaries) via techniques like Western blotting, immunofluorescence, and immunohistochemistry. These antibodies also aid in studying cohesin dynamics during meiosis, elucidating mechanisms underlying infertility or chromosomal abnormalities.
Clinically, STAG3 antibodies may serve as diagnostic tools for genetic screening in reproductive disorders. Research using these antibodies has advanced understanding of how cohesin defects contribute to aneuploidy or gametogenesis failure. However, commercial availability and specificity of high-quality STAG3 antibodies remain critical for reliable experimental outcomes. Overall, STAG3 antibodies are pivotal in exploring both basic reproductive biology and potential therapeutic targets for infertility.