|Detection of Human Uromodulin by Western Blot. Western blot shows lysates of human kidney (medulla) tissue. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Uromodulin Monoclonal Antibody (Catalog # MAB5144) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for Uromodulin at approximately 90 kDa (as indicated). This experiment was conducted under reducing conditions using Immunoblot Buffer Group 1.|
|Uromodulin in Human Ovary. Uromodulin was detected in formalin fixed paraffin-embedded sections of human ovary tissue using Mouse Anti-Human Uromodulin Monoclonal Antibody (Catalog # MAB5144) at 5 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS002) and counterstained with hematoxylin (blue). Specific staining was localized to epithelial cells in convoluted tubules. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.|
Uromodulin (also Tamm-Horsfall glycoprotein or THP) is an 85‑95 kDa urinary glycoprotein. It is secreted by renal tubule epithelium, acts as a binding protein for IL‑1, TNF-alpha and C1q, activates resting monocytes and promotes neutrophil phagocytosis. Uromodulin forms high molecular weight oligomers that line the kidnay tubules. Human Uromodulin is GPI‑linked. Its proprecursor is 616 amino acids (aa) in length. It contains three EGF-like domains (aa 28‑149), a ZP domain that mediates oligomerization (aa 334‑589) and a cleavable C‑terminal propeptide (aa 615‑640). There are multiple splice variants. One shows a deletion of aa 67‑199, a second shows a nine aa substitution for aa 609‑640, a third shows a Pro substitution for aa 205‑234 and a fourth shows a 66 aa substitution for aa 613‑640. Over aa 25‑614, human Uromodulin is 78% aa identical to mouse Uromodulin.