| Field | Specification |
|---|---|
| Target | |
| Alternative names | Neuronal pentraxin-2; NP2; Neuronal pentraxin II; NP-II; NPTX2 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human NPTX2 recombinant protein (Position: G16-L431). Human NPTX2 shares 96.9% and 95.7% amino acid (aa) sequence identity with mouse and rat NPTX2, respectively. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects neuronal pentraxin-2 (gene NPTX2) in human, mouse and rat samples and is validated for Western blot, IHC and ELISA. The predicted molecular weight is 47.0 kDa, and the supplier reports an observed band at about 47 kDa.
Neuronal pentraxin 2 (NPTX2, also called NARP) is a secreted, activity-regulated synaptic protein. It helps cluster AMPA-type glutamate receptors at excitatory synapses, particularly onto inhibitory interneurons, and contributes to synaptic plasticity. It is studied in learning, memory and neurodegenerative disease.
| Target | Neuronal pentraxin-2 (gene NPTX2; UniProt P47972, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 47.0 kDa |
| Observed MW | 47 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.25–0.5 µg/mL (Mouse, Rat) |
|---|---|
| IHC (paraffin sections) | 2–5 µg/mL (Mouse, Rat) |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): rat brain tissue, mouse brain tissue.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 30 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:5000, ECL detection.
Samples with confirmed staining (IHC): mouse pancreas tissue, rat pancreas tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).
Immunogen
Recombinant human NPTX2 fragment (Gly16–Leu431), expressed in E. coli. Sequence identity with the mouse and rat orthologs: 96.9% and 95.7%, respectively.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt describes neuronal pentraxin-2 as a secreted protein. Tissue expression noted by UniProt (human): Brain, pancreas, liver, heart and skeletal muscle. 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.
