Recombinant Human IGFBP3, transfected HEK293 cell culture supernatant

Recombinant human IGFBP3 (insulin-like growth factor-binding protein 3) overexpression cell culture supernatant, secreted from the serum-free medium of transfected HEK293 cells (200 µl). Purchase will also include one vial of normal control, the culture supernatant of HEK293 cell transfected with empty expression vector.