Invitrogen™ Geptanolimab Recombinant Monoclonal Antibody

Description

For reconstitution, add sterile, distilled water to achieve a final antibody concentration of 1 mg/mL. Gently shake to solubilize the protein completely. Do not vortex. Reconstituted products should be stored at -80 °.

Geptanolimab, also known as GB226, APL 501, or CBT 501, is a fully humanized recombinant anti-PD-1 monoclonal antibody biosimilar, specifically an immunoglobulin G4 (IgG4) molecule. The gene PDCD1, also known as PD-1 or CD279, encodes Programmed Cell Death Protein 1, a crucial immune checkpoint receptor expressed on T cells and other immune cells. Located on chromosome 2q37.3, PDCD1 consists of five exons. PD-1 is a type I transmembrane protein within the CD28/CTLA-4 superfamily and functions primarily to inhibit immune responses, thus maintaining peripheral tolerance and preventing autoimmune reactions. Upon binding to its ligands, PD-L1 and PD-L2, expressed on tumor cells and other tissues, PD-1 mediates the suppression of T-cell activity, inducing apoptosis in antigen-specific T cells while sparing regulatory T cells, contributing significantly to immune evasion by tumors.