Mouse Follistatin Like Protein 3 (FSTL3) ELISA Kit

The Mouse Follistatin Like Protein 3 (FSTL3) ELISA Kit from Assay Genie is used to quantify FSTL3, a secreted glycoprotein that acts as an endogenous antagonist of activin A, myostatin, and other TGF-β superfamily ligands. Unlike classical follistatin, FSTL3 lacks a heparin-binding domain, which alters its tissue distribution and bioavailability. FSTL3 influences muscle growth regulation, gonadal steroidogenesis, pregnancy maintenance, hepatic glucose handling, and cardiac remodeling in pressure-overload models, making it relevant to studies in reproductive biology, cachexia, fibrosis, and metabolic disease research. Investigators apply this kit to rodent-derived liquid specimens, including cell culture supernatant fractions and whole blood-derived fractions. Each kit includes a pre-coated microplate, biotinylated detection antibody, lyophilized recombinant standards, and streptavidin-HRP reagent, sufficient for one plate run. Working solutions should be refrigerated for short-term use, with longer-term storage frozen at -20°C or below; the standard protocol completes within roughly 3.5 hours of hands-on bench time.