Target Overview: What Is NPTX1?

Neuronal Pentraxin 1 (NPTX1) is a member of the long-chain pentraxin superfamily predominantly expressed in neurons of the central nervous system. It plays important roles in synaptic plasticity, excitatory synapse formation, and the clustering of AMPA-type glutamate receptors at postsynaptic densities. NPTX1 is secreted at synaptic terminals and can form heteromeric complexes with other pentraxin family members, including NPTX2 (NARP) and the neuronal pentraxin receptor (NPTXR).

Research implicates NPTX1 in neurodegenerative conditions and psychiatric disorders. Alterations in NPTX1 expression have been reported in the context of Alzheimer's disease, schizophrenia, and other neurological conditions, making it a target of growing interest in translational neuroscience. Reliable antibody tools such as the NPTX1 Mouse mAb (Ab349151) are essential for interrogating NPTX1 biology in cell and tissue models.

Antibody Specifications & Recommended Applications

The NPTX1 Mouse mAb (Ab349151) is a mouse-derived monoclonal antibody developed against the NPTX1 protein, referencing clone absea#KC-1959. As a monoclonal antibody, it offers high batch-to-batch consistency and epitope specificity, which is critical for quantitative and comparative studies.

Typical applications for anti-NPTX1 monoclonal antibodies of this class include:

• Western Blot (WB): Detection of NPTX1 in cell lysates or tissue extracts under denaturing conditions. Expected molecular weight should be confirmed against the NPTX1 protein sequence; refer to the product datasheet for confirmed band sizes.
• Immunohistochemistry (IHC): Localization of NPTX1 protein in fixed tissue sections, including brain and neuronal tissues. Antigen retrieval optimization is recommended.
• Immunofluorescence (IF): Visualization of NPTX1 subcellular localization in cultured neurons or cell lines.
• Immunoprecipitation (IP): Enrichment of NPTX1 protein complexes from cell or tissue lysates.

Note: Researchers should verify application suitability and optimal working dilutions from the product datasheet or by contacting Aladdin Scientific technical support, as validated applications may vary by lot.

Best-Practice Protocol Guidelines

Following standardized protocols ensures reproducibility and optimal signal-to-noise ratios when using NPTX1 Mouse mAb. The guidelines below represent general best practices for monoclonal antibody use; always cross-reference with the specific product datasheet.

Western Blot

1. Prepare cell or tissue lysates using an appropriate lysis buffer (e.g., RIPA buffer with protease inhibitors). For brain tissue, mechanical homogenization is recommended.
2. Resolve protein by SDS-PAGE (typically 10–12% polyacrylamide gel for NPTX1 at its expected molecular weight) and transfer to PVDF or nitrocellulose membrane.
3. Block membrane with 5% non-fat dry milk or BSA in TBST for 1 hour at room temperature.
4. Incubate with NPTX1 Mouse mAb at the recommended dilution (see datasheet) in blocking buffer overnight at 4°C.
5. Wash 3× with TBST, then incubate with appropriate HRP-conjugated anti-mouse secondary antibody.
6. Detect signal by enhanced chemiluminescence (ECL).

Immunohistochemistry (IHC-P)

1. Fix tissue in 10% neutral-buffered formalin and embed in paraffin. Section at 4–6 µm.
2. Deparaffinize and rehydrate sections. Perform antigen retrieval (e.g., citrate buffer pH 6.0, heat-induced).
3. Block endogenous peroxidase and non-specific binding with appropriate blocking serum.
4. Apply NPTX1 Mouse mAb at the recommended dilution; incubate overnight at 4°C in a humidified chamber.
5. Apply HRP-conjugated anti-mouse secondary antibody, visualize with DAB, and counterstain with hematoxylin.

Storage: Store the antibody according to the datasheet instructions. Generally, monoclonal antibodies in glycerol-containing buffer are stored at –20°C. Avoid repeated freeze-thaw cycles to maintain activity.

Troubleshooting Common Issues

Even with high-quality monoclonal antibodies, experimental challenges can arise. The table below outlines common issues and suggested remedies when working with NPTX1 Mouse mAb.

For persistent issues, contact Aladdin Scientific technical support with your experimental details and lot number for personalized troubleshooting assistance.

Quality, Storage & Handling Recommendations

Maintaining antibody integrity is essential for consistent experimental outcomes. Follow these guidelines for NPTX1 Mouse mAb (Ab349151):

• Storage Temperature: Store at –20°C for long-term storage. Short-term storage (up to 1 month) may be acceptable at 4°C depending on formulation — consult the datasheet.
• Freeze-Thaw Cycles: Minimize freeze-thaw cycles. Aliquot the antibody into single-use volumes upon first receipt to prevent repeated freeze-thaw degradation.
• Formulation Awareness: Check whether the antibody contains sodium azide (a common preservative). If so, do not use in cell-based functional assays where azide may be cytotoxic.
• Working Dilution Verification: Always perform a titration experiment when using a new lot, even for the same antibody clone, to confirm optimal working dilution.
• Controls: Include positive tissue or cell controls (known to express NPTX1, such as brain tissue), negative controls (primary antibody omitted), and where possible, isotype controls to confirm specificity.
• Lot Tracking: Record the lot number in your laboratory notebook. Lot-specific performance data may be available from Aladdin Scientific upon request.

Proper handling and storage will maximize antibody shelf life and ensure the reliability of your experimental data.