| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Ubiquitin carboxyl-terminal hydrolase 21; Deubiquitinating enzyme 21; Ubiquitin thioesterase 21; Ubiquitin-specific-processing protease 21; USP21; USP23; PP1490 |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | E.coli-derived human USP21 recombinant protein (Position: A277-L565). |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
Anti-USP21 Antibody Picoband® is an antibody for USP21 detection raised in Rabbit (Polyclonal, Rabbit IgG), with reported reactivity: Human,Mouse,Rat. Commonly used in WB, IHC, IF, ICC, Flow Cytometry, ELISA workflows.
Key elements and design rationale
- Target: USP21 (ubiquitin specific peptidase 21); UniProt: Q9UK80
- Antibody format: Rabbit, Polyclonal, Rabbit IgG
- Molecular weight: 63 kDa, calculated 104553 MW
- Applications: WB, IHC, IF, ICC, Flow Cytometry, ELISA
Vendor description (summary): Boster Bio Anti-USP21 Antibody Picoband® catalog # A06639-1.
Biological background
Biological context: Deubiquitinates histone H2A, a specific tag for epigenetic transcriptional repression, thereby acting as a coactivator. Deubiquitination of histone H2A releaves the repression of di- and trimethylation of histone H3 at 'Lys-4', resulting in regulation of transcriptional initiation. Regulates gene expression via histone H2A deubiquitination. Also capable of removing NEDD8 from NEDD8 conjugates but has no effect on Sentrin-1 conjugates. Deubiquitinates BAZ2A/TIP5 leading to its stabilization.
Expression and localization notes: cellular localization: Nucleus. Cytoplasm., tissue context: Highly expressed in heart, pancreas and skeletal muscle. Also expressed in brain, placenta, liver and kidney, and at very low level in lung..
Common research applications
- Western blotting (WB): Compare USP21 levels across samples and conditions using appropriate loading and biological controls.
- Immunohistochemistry (IHC): Evaluate spatial distribution of USP21 in tissue sections, considering fixation and antigen retrieval effects.
- Immunofluorescence / ICC: Assess subcellular localization patterns and co-localization with compartment markers in cultured cells.
- Flow cytometry: Quantify USP21-positive populations in single-cell suspensions with appropriate gating and controls.
- ELISA: Use antibody-based detection formats to assess antigen presence or binding in plate-based assays.
Notes for experimental interpretation
- Account for isoforms, post-translational modifications, and sample-specific processing that can shift apparent molecular weight or epitope accessibility.
- Use positive/negative biological controls where possible (e.g., known-expressing cells/tissues, knockdown/knockout models) and include appropriate secondary-only/isotype controls for imaging workflows.
Additional product notes (from provided fields)
- Specificity: No cross reactivity with other proteins.
- Background: Ubiquitin carboxyl-terminal hydrolase 21 is a protein that in humans is encoded by the USP21 gene. It is mapped to 1q23.3. This gene encodes a member of the C19 peptidase family, also known as family 2 of ubiquitin carboxy-terminal hydrolases. The encoded protein cleaves ubiquitin from ubiquitinated proteins for recycling in intracellular protein degradation. The encoded protein is also able to release NEDD8, a ubiquitin-like protein, from NEDD8-conjugated proteins. This gene has been referred to as USP16 and USP23 but is now known as USP21. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.
- Cross reactivity: No cross-reactivity with other proteins.
- Cellular localization: Nucleus. Cytoplasm.
- Tissue details: Highly expressed in heart, pancreas and skeletal muscle. Also expressed in brain, placenta, liver and kidney, and at very low level in lung.
- Research category: Cofactors, Vitamins/Minerals,Metabolism,Mitochondrial,Mitochondrial Markers,Mitochondrial Metabolism,Pathways and Processes,Signal Transduction,Vitamins/Minerals
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
