Description General description IgGs are glycoprotein antibodies that modulate several immune responses. Rabbit IgGs against target proteins are often used as primary antibodies in various research applications. Thus, secondary anti-rabbit IgGs conjugated to a detectable substrate are useful tools for the analysis of target proteins. Goat anti-rabbit IgGs associate with rabbit IgGs. Immunogen rabbit IgG F(ab′)2 fragment Application Atto 488-goat anti-rabbit IgG F(ab′)2 fragment, whole molecule antibody can be used for fluorescence-based immunoassays. Physical form Atto 488 F(ab)′2 fragment goat anti-rabbit IgG (whole molecule) is provided in unit sizes of 1 ml as 1mg/mL solutions in 0.1 M sodium phosphate, 0.1 M NaCl, pH 7.5, containing 5 mM sodium azide as a preservative. Disclaimer Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals. Legal Information This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing. Preparation Note F(ab)′2 fragment goat anti-rabbit is conjugated to Atto 488 NHS and purified by gel permeation chromatography and dialysis to remove unbound dye. Analysis Note Unconjugated dye ≤5% of total fluorescence; dye-to protein ratio ≥2