Cy3 Conjugated Anti-Mouse IgG SABC Kit is a four-component system for indirect sensitive immunofluorescent detection of proteins on tissue sections via ICC, IHC-P or IHC-F probed with mouse primary antibody by utilizing a biotinylated secondary antibody that links target-bound primary antibodies to streptavidin-Cy3 conjugate forming a stable StreptAvidin-Biotin Complex (SABC).