Meprin beta Subunit/MEP1B in Mouse Intestine. Meprin beta Subunit/MEP1B was detected in perfusion fixed frozen sections of mouse intestine using 1 µg/mL Goat Anti-Mouse Meprin beta Subunit/MEP1B Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3300) overnight at 4 °C. Tissue was stained with the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific labeling was localized to the brush border of intestinal villi.View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections.