Fig3: Paraformaldehyde-fixed, paraffin embedded (Human colon cancer); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37℃ for 30min; Antibody incubation with (Telomeric repeat binding protein 2 ) Polyclonal Antibody, Unconjugated at 1:400 overnight at 4℃, followed by a conjugated secondary antibody (sp-0023) for 20 minutes and DAB staining.