KPNA2 Antibody (N-Terminal Region)

Overview

KPNA2 Antibody (N-Terminal Region) is a research-use-only Rabbit polyclonal (rabbit origin) Rabbit IgG directed against KPNA2 (N-Terminal Region). It is supplied for interpretation-focused detection and comparative profiling in WB.

Key elements and design rationale

• Target context: This antibody is raised against Amino acids 2-46 (STNENANTPAARLHRFKNKGKDSTEMRRRRIEVNVELRKAKKDDQ) were used as the immunogen for the KPNA2 antibody.. Epitope context matters because isoforms, processing, and post-translational modifications can change what is accessible in a given assay.
• Format: Antigen affinity purified. Format influences background and compatibility with different detection chemistries; conjugated formats (when present) can simplify multiplexing and reduce reliance on secondary reagents.
• Species reactivity: Human. Cross-species performance can vary with sequence divergence and epitope conservation, so interpretation should be anchored with appropriate biological controls.
• Applications: WB. These indicate assay contexts where the antibody is commonly applied; actual performance depends on sample type and processing.
• Limitations: This KPNA2 antibody is available for research use only.. Consider these constraints when selecting controls and when comparing results across sample matrices.

Polyclonal reagents can differ in how they recognize epitope features. Monoclonal antibodies often provide more consistent epitope targeting across lots, while polyclonal preparations may broaden recognition across related epitope variants.

Biological background

KPNA2 (N-Terminal Region) refers to the gene/protein target stated in the product record. Protein targets can exhibit context-dependent expression, regulated turnover, isoform diversity, and post-translational modifications that affect apparent molecular weight and epitope accessibility. For curated functional annotation, sequence features, and expression context, consult UniProtKB P52292, Ensembl, and Human Protein Atlas.

Research relevance and current trends

• Integrating antibody-based detection with single-cell and spatial atlasing efforts to connect RNA programs with protein-level abundance and localization in defined cell states.
• Expanding multiplexed imaging and high-content screening, where reagent specificity, cross-reactivity risk, and channel design (including direct conjugates) become central to interpretation.
• Growing emphasis on reproducibility and application-specific validation frameworks (e.g., genetic perturbation controls, orthogonal measurements, and independent antibody strategies) when drawing mechanistic conclusions.

Common research applications

• Western blot (WB): commonly used to compare relative abundance/size (e.g., band intensity or mobility shifts) between conditions.

Interpretation typically focuses on relative differences (presence/absence, fold-changes, compartment shifts, or population-level shifts) rather than absolute quantitation. When signal changes are observed, they may reflect altered expression, altered localization/trafficking, changes in modification state, or differences in sample composition; orthogonal readouts and appropriate controls help distinguish these possibilities.

Application details (record-specific): Western Blot: 0.5-1ug/ml

Application notes (record-specific): Optimal dilution of the KPNA2 antibody should be determined by the researcher.

Notes for experimental interpretation

• Product description (record-specific): Importin subunit alpha-2 is a protein that in humans is encoded by the KPNA2 gene. The import of proteins into the nucleus is a process that involves at least 2 steps. The first is an energy-independent docking of the protein to the nuclear envelope and the second is an energy-dependent translocation through the nuclear pore complex. Imported proteins require a nuclear localization sequence (NLS) which generally consists of a short region of basic amino acids or 2 such regions spaced about 10 amino acids apart. Proteins involved in the first step of nuclear import have been identified in different systems. These include the Xenopus protein importin and its yeast homolog, SRP1 (a suppressor of certain temperature-sensitive mutations of RNA polymerase I in Saccharomyces cerevisiae), which bind to the NLS. KPNA2 protein interacts with the NLSs of DNA helicase Q1 and SV40 T antigen and may be involved in the nuclear transport of proteins. KPNA2 also may play a role in V(D)J recombination.
• Potential confounders: isoforms, proteolytic processing, and PTMs can change epitope presentation and apparent size; fixation/denaturation state can also expose or mask epitopes. Species differences near the epitope may affect cross-reactivity.
• Control concepts: include genetic perturbation (KO/KD) or overexpression comparisons, orthogonal measurement (e.g., transcript or proteomics), and independent antibody/epitope strategies. For conjugated reagents, include staining-only/background controls appropriate to the detection chemistry.

Immunogen/epitope context is described as: Amino acids 2-46 (STNENANTPAARLHRFKNKGKDSTEMRRRRIEVNVELRKAKKDDQ) were used as the immunogen for the KPNA2 antibody.. Monoclonal and polyclonal formats differ in epitope breadth; this can influence sensitivity to sequence variants, isoforms, or PTM-dependent recognition.

• Datasheet (KPNA2-ANTIBODY-N-TERMINAL-REGION-R32911)

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.