Key features of commercially available USP20 antibodies include:
HRP-conjugated secondary antibodies amplify signals in assays by catalyzing chemiluminescent or chromogenic reactions. Key considerations:
| Application | HRP Substrate Type | Detection Method |
|---|---|---|
| Western Blotting | Chemiluminescent (e.g., ECL) | Light emission captured via imaging |
| Immunohistochemistry | Chromogenic (e.g., DAB) | Colored precipitate visible under microscopy |
| ELISA | Fluorescent/Colorimetric | Quantitative plate reader analysis |
HRP-based systems are preferred for high sensitivity and compatibility with diverse substrates .
USP20 stabilizes Rad17 by deubiquitination, enabling checkpoint kinase 1 (Chk1) activation and DNA repair. Depletion of USP20 increases Rad17 ubiquitination and impairs Chk1 phosphorylation .
USP20 interacts with HSPA2, reducing its ubiquitination and stabilizing it to promote lipid accumulation in hepatocytes. Knockdown of USP20 decreases lipid content in HepG2 cells .
USP20 deubiquitinates RETREG1, a receptor for ER-phagy, enhancing its stability. Inhibition of USP20 elevates RETREG1 ubiquitination, disrupting ER homeostasis .
USP20 stabilizes p62, promoting PKCζ-mediated NF-κB activation during TNFα signaling. USP20 depletion reduces NF-κB target gene expression (e.g., BFL1, cFLIP) .
USP20 stabilizes SNAI2, a transcription factor driving epithelial-mesenchymal transition (EMT) in breast cancer. USP20 overexpression correlates with lymph node metastasis and poor prognosis .
Primary Antibody: USP20 antibody (1:500–1:1000 dilution in blocking buffer).
Secondary Antibody: HRP-conjugated anti-rabbit IgG (1:10,000 dilution).
Detection: Chemiluminescent substrate (e.g., ECL) followed by imaging .
Use 0.5–4.0 µg of USP20 antibody per 1.0–3.0 mg of lysate. Pre-clear lysates with protein A/G beads before adding the antibody .