Immunocytochemistry-Immunofluorescence analysis of NOTCH4 in HeLa cells using NOTCH4 Polyclonal Antibody (Product # PA5-142706). Cells were fixed with paraformaldehyde, permeabilized with 0.15% Triton, and incubated with the primary antibody for 1hr (10 µg/mL) followed by Alexa Fluor 488 secondary antibody (2 µg/mL), showing membrane and nuclear staining. The nuclear stain is DAPI (blue). Negative control: Unimmunized goat IgG (10 µg/mL) followed by Alexa Fluor 488 secondary antibody (2 µg/mL).