














Scientific Data

Detection of Goat IgG Primary Antibody by Immunocytochemistry. Detection of human EGFR by incubating cells with 5 μg/mL of Goat anti-Human EGFR polyclonal antibody (AF231) at room temperature for 1 hour followed by incubation with 1:200 dilution of Donkey Anti-Goat IgG NorthernLights™ NL493-conjugated secondary antibody for 1 hour at room temperature. Note strong positive staining in A431 cells (left panel, positive control) and a lack of non-specific background staining in the absence of primary antibodies (right panel, negative control).


Background: IgG
R&D Systems offers a range of secondary antibodies and controls for flow cytometry, immunohistochemistry, and Western blotting. We provide species-specific secondary antibodies that are available with a variety of conjugated labels.Our NorthernLights fluorescent secondary antibodies are bright and resistant to photobleaching. We are currently offering secondary antibodies recognizing mouse, rat, goat, sheep, and rabbit IgG as well as chicken IgY. These reagents are available with three distinct excitation and emission maxima, making them ideal for multi-color fluorescence microscopy.
