direct ELISA: 1:30,000 using using 5 μg/ml of rabbit IgG for the coating and OPD substrate
immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:200
western blot (chemiluminescent): 1:80,000-1:160,000 using detecting β-actin in total cell extract of HeLa cells (5-10 μg/mL)
Goat anti-rabbit IgG-peroxidase conjugate associates with all rabbit Igs. The conjugate shows no reaction with human IgG by immunoelectrophoresis (IEP). Furthermore, the antibody is adsorbed with human IgG to reduce background staining with human samples.
Immunoglobulin G (IgG) belongs to the immunoglobulin family and is a widely expressed serum antibody. An immunoglobulin has two heavy chains and two light chains connected by a disulfide bond. It is a glycoprotein and mainly helps in immune defense. IgG is a major class of immunoglobulin.
Immunoglobulin G (IgG) participates in hypersensitivity type II and type III. Rabbit IgG is further divided into five classes- IgM, IgG, IgA, IgD and IgE. It has only one IgG variant with one interheavy disulfide bridge. It helps in opsonization, complement fixation and antibody dependent cell mediated cytotoxicity.