| Field | Specification |
|---|---|
| Target | |
| Alternative names | NEDD8-activating enzyme E1 catalytic subunit; NEDD8-activating enzyme E1C; Ubiquitin-activating enzyme E1C; Ubiquitin-like modifier-activating enzyme 3; Ubiquitin-activating enzyme 3; UBA3; UBE1C |
| UniProt # | |
| Host | |
| Clone | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthesized peptide derived from human UBA3 |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Liquid |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
Clone 28U91 is a rabbit monoclonal antibody that recognizes NEDD8-activating enzyme E1 catalytic subunit (gene UBA3) in human, mouse and rat samples and is validated for Western blot. The predicted molecular weight is 51.9 kDa, and the supplier reports an observed band at about 50 kDa.
UBA3 is the catalytic subunit of the NEDD8-activating enzyme (NAE), formed with NAE1. It activates the ubiquitin-like protein NEDD8 and passes it to the E2 enzyme UBE2M, leading to neddylation of cullins, which turns on cullin-RING ubiquitin ligases. It is the target of the NAE inhibitor pevonedistat.
| Target | NEDD8-activating enzyme E1 catalytic subunit (gene UBA3; UniProt Q8TBC4, human) |
|---|---|
| Clone | 28U91 |
| Host / Clonality / Isotype | Rabbit / Monoclonal / IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Liquid |
| Formulation | PBS (pH 7.4); 150 mM NaCl; 0.02% sodium azide; 50% glycerol; plus stabilizers |
| Calculated MW | 51.9 kDa |
| Observed MW | 50 kDa |
| Storage | Long term: −20 °C for up to 12 months. Frequent use: 4 °C for up to 1 month. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 1:500–1:2000 |
|---|
Samples with a confirmed band (WB): HeLa cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Immunogen
Synthetic peptide based on the sequence of human UBA3.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. Tissue expression noted by UniProt (human): Ubiquitously expressed. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
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.
