Isotype Controls are antibodies of the same host species, isotype, and conjugate as the primary antibody of interest, but with no specific target antigen. As essential background controls, they distinguish specific signals from non-specific noise.
Their key functions include eliminating Fc receptor-mediated non-specific binding, establishing baseline thresholds for positive signals, validating antigen specificity, and assisting in optimizing antibody concentrations.
Widely used in flow cytometry, immunofluorescence, IHC, in vivo studies, and ELISA, isotype controls are standard components for ensuring reliable results in immunoassays.
InvivoGen provides Anti-β-Gal-hIgG1*, a monoclonal antibody (mAb) specifically developed for the generation of controlantibody-drug conjugates (ADCs). This mAb features: InvivoGen's Anti-β-Gal-hIgG1* has been generated by recombinant DNA technology, produced in CHO cells, and purified by affinity chromatography.
Anti-hEpCAM-βGalis a bispecific antibody that recognizes two sites: human epithelial cell adhesion molecule (hEpCAM) andE. coliβ-galactosidase (β-Gal). It is used as a negative control for the Anti-hEpCAM-CD3 bispecific antibody that, like solitomab, engages unstimulated T cells to proliferate and exert cytotoxic activity on EpCAM-positive tumor cells [1]. Human EpCAM (also known as CD326, Trop1) is a transmembrane, 40 kDa glycoprotein highly abundant in almost all human carcinomas, including colon, prostate, ovarian, or breast cancer [2]. In healthy tissue, EpCAM expression is generally low [1,2]. In cancer, EpCAM overexpression is responsible for tumor proliferation, invasion, and migration. Since it is often correlated with a poor prognosis, EpCAM represents an attractive therapeutic target [1].