Anti-SERPINA4 Antibody

SERPINA4, a serine protease inhibitor in the serpin superfamily, is the target recognized by this polyclonal reagent from Antibodies.com. Raised in rabbits and purified as an IgG fraction, the unconjugated antibody is supplied at 200µl and validated in western blot (WB), immunohistochemistry (IHC), and flow cytometry (FC) workflows on human samples. SERPINA4 encodes kallistatin, a protein synthesized mainly by hepatocytes and secreted into the bloodstream, where it acts as a tissue kallikrein antagonist and a regulator of vascular tone, angiogenesis, and inflammation. Researchers investigating hepatic injury, sepsis-associated vascular dysfunction, tumor microenvironment signaling, or metabolic disease use anti-SERPINA4 reagents to track expression in liver lysates, tumor sections, and immune cell populations. The polyclonal format provides recognition of multiple epitopes on the kallistatin molecule, supporting detection across denaturing and native conditions when paired with appropriate secondary antibodies. Aliquot on receipt and store refrigerated to preserve activity across blots and staining runs; avoid repeated freeze-thaw cycles that can degrade IgG performance.