Human Ferritin (H+L chain) (Active)

This Antibodies.com preparation is native human ferritin composed of both heavy (~21 kDa) and light (~19 kDa) subunits assembled into the native 24-mer apoferritin shell with a total molecular mass of approximately 474 kDa, presented in its iron-loaded, biologically active form. The 1 mg liquid product is supplied in a storage buffer and is intended for in vitro research use only, serving as a reference standard or positive control in ferritin ELISA, western blot calibration, immunoprecipitation experiments, and studies of cellular iron storage, oxidative stress, and homeostasis. For handling, aliquot the protein upon first thaw to limit freeze-thaw cycles and store at -20 °C; for long-term storage, keep at -80 °C and avoid repeated freeze-thaw. The unconjugated formulation preserves native conformational epitopes on both H and L chain subunits, enabling functional iron-binding and release assays as well as immunodetection workflows in iron metabolism research.