Anti-CD40 molecule antibodies are directed against the protein encoded by the gene CD40 in humans. The gene may also be known as CDW40, CD40 molecule, TNF receptor superfamily member 5, Bp50, TNFRSF5, p50, and tumor necrosis factor receptor superfamily member 5. Structurally, the protein is reported to be 30.6 kilodaltons in mass. Based on gene name, canine, porcine, monkey, mouse and rat orthologs may also be found. Anti-CD40 molecule antibodies are directed against the protein encoded by the gene CD40 in humans. The gene may also be known as CDW40, CD40 molecule, TNF receptor superfamily member 5, Bp50, TNFRSF5, p50, and tumor necrosis factor receptor superfamily member 5. Structurally, the protein is reported to be 30.6 kilodaltons in mass. Based on gene name, canine, porcine, monkey, mouse and rat orthologs may also be found.