Meteorin-like/METRNL in Mouse Embryo. Meteorin-like/METRNL was detected in immersion fixed frozen sections of mouse embryo (13 d.p.c.) using Sheep Anti-Mouse Meteorin-like/METRNL Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6679) at 0.6 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Sheep HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS019 ) and counterstained with hematoxylin (blue). Specific staining was localized to muscle cells. View our protocol for Chromogenic IHC Staining of Frozen Tissue Sections .