Immunocytochemistry analysis of splicing factor 1 using anti-splicing factor 1 antibody (Product # PA5-79983). splicing factor 1 was detected in a section of A431 cells. Enzyme antigen retrieval was performed using IHC enzyme antigen retrieval reagent for 15 mins. The cells were blocked with 10% goat serum and then incubated with 2μg/mL rabbit anti-splicing factor 1 antibody (Product # PA5-79983) overnight at 4°C. Cy3 Conjugated Goat Anti-Rabbit IgG was used as secondary antibody at 1:100 dilution and incubated for 30 minutes at 37°C. The section was counterstained with DAPI. Visualize using a fluorescence microscope and filter sets appropriate for the label used.