Recombinant Human Cytotoxic T-Lymphocyte-Associated Protein 4/CTLA4, transfected HEK293 cell culture supernatant

Recombinant human Cytotoxic T-Lymphocyte-Associated Protein 4/CTLA4 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.