HGF Activator in Mouse Intestine. HGF Activator was detected in perfusion fixed frozen sections of mouse intestine using Goat Anti-Mouse Pro-HGF Activator Antigen Affinity-purified Polyclonal Antibody at 15 ug/ml overnight at 4°C. Tissue was stained using Anti-Goat HRP-DAB (brown) and counterstained with hematoxylin (blue). Lower panel shows a lack of labeling when primary antibodies are omitted and tissue is stained only with secondary antibody followed by incubation with detection reagents. Specific staining was localized to cytoplasm.