Biotin-conjugated SCN10A antibodies are widely used in enzyme-linked immunosorbent assays to quantify SCN10A protein levels. For example:
Cusabio’s CSB-PA750910LD01HU (human-specific) detects SCN10A in ELISA with high sensitivity, leveraging biotin-streptavidin interactions for signal amplification .
Assay Genie’s PACO57239 (human-reactive) is validated for ELISA, demonstrating robust performance in detecting recombinant human SCN10A .
While primarily optimized for ELISA, some antibodies (e.g., ABIN2483063) are compatible with Western blot, detecting a ~220 kDa band corresponding to SCN10A .
Biotin-conjugated antibodies enable precise localization of SCN10A in cellular assays. For instance:
Proteintech’s 55334-1-AP (human-reactive) is validated for IF/ICC, detecting SCN10A in SH-SY5Y cells .
SCN10A/Nav1.8 is a key mediator of neuropathic pain, as demonstrated in studies using knockout models and RNA interference. Biotin-conjugated antibodies aid in mapping its expression in dorsal root ganglia (DRG) and sciatic nerves .
Human-Specific: Cusabio and Assay Genie antibodies target human SCN10A, ideal for clinical research .
Rodent Models: ABIN2483063 (rat-reactive) is used in preclinical studies, with cross-reactivity to human and mouse .
Dicer-Dependent Regulation: SCN10A expression is modulated by small RNAs in nociceptors, as shown in studies using RNA interference and antibody-based validation .
Dilution Optimization: Users must titrate antibodies for optimal signal-to-noise ratios, as recommended by manufacturers .
Cross-Reactivity: Rat-specific antibodies (e.g., ABIN2483063) may detect homologs in other species, requiring validation .
Storage Stability: Biotin-conjugated antibodies remain stable at -20°C for up to one year, avoiding freeze-thaw cycles .
SCN10A encodes the voltage-gated sodium channel Nav1.8, a tetrodotoxin-resistant channel that mediates voltage-dependent sodium ion permeability in excitable membranes. The protein assumes open or closed conformations in response to membrane voltage differences, forming sodium-selective channels through which ions pass according to their electrochemical gradient . SCN10A plays a crucial role in neuropathic pain mechanisms, making it a significant target for pain research and potential therapeutic development . Recent genetic studies have also revealed biallelic SCN10A mutations associated with more complex phenotypes including neuromuscular disease, cognitive impairment, muscle weakness, and epileptic encephalopathy .
The SCN10A Antibody, Biotin conjugated is a polyclonal antibody with the following specifications:
| Parameter | Specification |
|---|---|
| Host Species | Rabbit |
| Clonality | Polyclonal |
| Isotype | IgG |
| Target Protein | Sodium channel protein type 10 subunit alpha (Nav1.8) |
| Immunogen | Recombinant Human SCN10A protein (aa 992-1099) |
| Species Reactivity | Human |
| Applications | ELISA |
| Conjugate | Biotin |
| Purification | >95%, Protein G purified |
| Storage Form | Liquid in 50% Glycerol, 0.01M PBS, pH 7.4 with 0.03% Proclin 300 |
| Storage Conditions | -20°C or -80°C, avoid repeated freeze-thaw cycles |
| UniProtID | Q9Y5Y9 |
The antibody is designed to recognize the human SCN10A protein with high specificity and can be detected using streptavidin-based detection systems due to its biotin conjugation .
Biotin conjugation provides several methodological advantages for SCN10A research. The strong and specific interaction between biotin and streptavidin (Kd ≈ 10^-15 M) enables sensitive detection systems without requiring direct enzyme conjugation to the primary antibody. This approach preserves antibody functionality while allowing for signal amplification through multiple biotin-streptavidin interactions.
For SCN10A research specifically, biotin conjugation facilitates:
Enhanced sensitivity in detecting low-abundance SCN10A in neuronal tissues
Multiplex immunoassays where several biotin-conjugated antibodies targeting different proteins can be used simultaneously
Immunoprecipitation studies to isolate SCN10A-containing protein complexes
Flexibility in detection systems (fluorescent, colorimetric, or chemiluminescent)
When designing ELISA experiments with SCN10A Antibody, Biotin conjugated, implement the following comprehensive control strategy:
Essential Controls:
Positive Control: Include recombinant human SCN10A protein (aa 992-1099) as this matches the immunogen used to generate the antibody
Negative Control: Use samples known to lack SCN10A expression
Antibody Controls:
Primary antibody omission control (replace with buffer)
Isotype control (non-specific rabbit IgG, biotin-conjugated)
Blocking Control: Test efficiency of blocking solutions to minimize background
Streptavidin Control: Include wells with streptavidin reagent only to assess non-specific binding
Advanced Controls:
Peptide Competition Assay: Pre-incubate antibody with excess immunizing peptide to confirm specificity
Cross-Reactivity Assessment: Test against related sodium channel proteins (SCN9A, SCN11A) to confirm selectivity
Dilution Linearity: Prepare serial dilutions of positive samples to determine optimal concentration range and confirm signal proportionality
This control framework helps distinguish genuine SCN10A detection from technical artifacts and enables proper interpretation of experimental results.
Optimizing SCN10A antibody detection in neuronal tissues requires tissue-specific adjustments:
Protocol Optimization Strategy:
Tissue Fixation and Processing:
For fresh frozen tissue: 4% paraformaldehyde post-fixation (10 minutes) preserves SCN10A epitopes
For FFPE samples: Extended antigen retrieval (citrate buffer pH 6.0, 20 minutes) enhances epitope accessibility
Blocking and Permeabilization:
For peripheral neurons (DRG): Use 0.3% Triton X-100 with 10% normal goat serum
For central neurons: Reduce Triton X-100 to 0.1% to prevent excessive permeabilization
Antibody Concentration Optimization:
Starting dilution: 1:250-1:500 (based on stock concentration of 50μg)
Perform titration experiments for each tissue type
For low-expressing regions: Consider tyramide signal amplification systems
Detection System Selection:
Streptavidin-HRP with appropriate substrate for chromogenic detection
Fluorophore-conjugated streptavidin for fluorescence microscopy
Quantum dot-conjugated streptavidin for enhanced photostability in confocal imaging
Signal-to-Noise Enhancement:
Endogenous biotin blocking (streptavidin/biotin blocking kit) is essential for brain and liver tissues
Extended washing steps (5x10 minutes) in PBST improve signal clarity
Autofluorescence reduction treatments for aged tissues
Validation through dual-labeling with established neuronal markers (βIII-tubulin, NeuN, or peripherin) confirms neuronal-specific SCN10A localization .
Distinguishing specific from non-specific binding requires systematic analytical approaches:
Verification Methods:
Peptide Competition Assay:
Pre-incubate antibody with excess immunizing peptide (10-50x molar ratio)
Compare signal between competed and non-competed antibody
Specific signals should be significantly reduced/eliminated
Knockout/Knockdown Validation:
Test antibody in SCN10A knockout tissues or siRNA-treated samples
Any remaining signal indicates potential cross-reactivity
Signal Distribution Analysis:
SCN10A-specific binding should show expected subcellular localization (membrane-associated)
Non-specific binding often appears diffuse or in unexpected compartments
Cross-Species Validation:
Test antibody reactivity across species with known SCN10A expression
Compare binding patterns with predicted homology and conservation patterns
Alternative Antibody Comparison:
Use a second SCN10A antibody targeting a different epitope
Concordant results strongly support specificity
Non-Specific Binding Troubleshooting Chart:
| Observation | Likely Cause | Solution |
|---|---|---|
| Diffuse background across all samples | Insufficient blocking | Increase blocking time/concentration, add 0.1% BSA to antibody diluent |
| Signal in negative control tissues | Cross-reactivity | Increase antibody dilution, verify with peptide competition |
| High signal in all cell types | Endogenous biotin | Use avidin/biotin blocking kit before antibody incubation |
| Non-specific nuclear staining | Charge-based interactions | Add 0.1-0.3M NaCl to antibody diluent |
| Edge artifacts | Drying during incubation | Ensure humidity chamber, increase incubation volume |
Combining multiple validation approaches provides the strongest evidence for binding specificity .
Researchers should be aware of several critical pitfalls when interpreting SCN10A antibody results:
Common Misinterpretation Scenarios:
Cross-Reactivity with Related Sodium Channels:
SCN10A (Nav1.8) shares sequence homology with other voltage-gated sodium channels
Solution: Perform western blots with recombinant SCN9A and SCN11A to verify specificity
Validation approach: Comparative immunostaining in tissues with differential sodium channel expression
Confounding by Disease State:
SCN10A expression changes in neuropathic conditions or inflammation
Solution: Include appropriate disease controls and time-course analyses
Verification: Correlate protein detection with qPCR validation of SCN10A transcript levels
Developmental Expression Variations:
Nav1.8 expression patterns change during development
Solution: Age-match samples carefully, include developmental series when relevant
Verification: Compare with published developmental expression profiles
Technical Artifacts vs. Biological Signal:
Distinguishing edge effects, precipitation artifacts from true signal
Solution: Technical replicates with different detection methods
Verification: Correlate findings with functional assays (electrophysiology)
Threshold Setting Challenges:
Setting appropriate positive/negative thresholds in quantitative assays
Solution: Use ROC curve analysis with known positive/negative samples
Verification: Include gradient standards of recombinant protein
Decision Tree for Result Validation:
For reliable interpretation, follow this hierarchical validation approach:
Technical validation (controls, replicates, concentration tests)
Biological validation (expression patterns match known distribution)
Functional validation (correlate with electrophysiological properties)
Pathological validation (changes in disease models match expectations)
SCN10A (Nav1.8) channels play a critical role in neuropathic pain, and biotin-conjugated antibodies offer several sophisticated approaches for investigating these mechanisms:
Advanced Methodological Applications:
High-Resolution Localization Studies:
Combine biotin-conjugated SCN10A antibody with super-resolution microscopy (STORM, STED)
Map channel distribution changes at nodes of Ranvier following nerve injury
Correlate spatial reorganization with electrophysiological hyperexcitability
Protein-Protein Interaction Analysis:
Use as capture antibody in proximity ligation assays to study Nav1.8 interactions with:
β-subunits in different pain states
Scaffolding proteins (Ankyrin-G, FHF2)
Modulating kinases (PKA, PKC) following inflammatory stimuli
Quantify interaction changes in models of neuropathic vs. inflammatory pain
Trafficking and Internalization Studies:
Pulse-chase experiments with surface biotinylation to track channel movement
Quantify changes in membrane expression following pain-inducing stimuli
Monitor treatment-induced changes in channel localization
Ex Vivo Tissue Analysis Protocol:
Fresh DRG neurons from pain models (SNI, CCI, diabetic neuropathy)
Multiplex staining with markers of neuronal activation (pERK, c-Fos)
Correlate SCN10A expression with electrophysiological parameters
Quantify co-localization with inflammatory mediator receptors
Therapeutic Target Validation:
Monitor SCN10A expression/distribution changes following novel analgesic treatments
Correlate molecular changes with behavioral pain assessments
Establish timeline of channel modification relative to pain amelioration
This comprehensive approach links molecular SCN10A dynamics to functional pain outcomes, providing mechanistic insights for therapeutic development .
Recent research has identified biallelic SCN10A mutations in epilepsy phenotypes, opening new avenues for antibody-based investigations:
Cutting-Edge Methodological Framework:
Patient-Derived Cell Models:
iPSC-derived neurons from patients with SCN10A variants (p.Thr1505Met, p.Arg1579*)
Comparative immunostaining to assess variant effects on:
Protein expression levels
Subcellular localization
Co-localization with other epilepsy-related channels
Single-cell protein quantification correlated with electrophysiological phenotypes
Variant-Specific Detection Systems:
Development of mutation-specific antibodies for common pathogenic variants
Epitope mapping to determine accessibility of mutation sites
Differential binding assays to distinguish wild-type from variant proteins
Functional Correlation Protocol:
Multi-modal analysis combining:
Biotin-conjugated antibody immunocytochemistry
Patch-clamp electrophysiology
Calcium imaging
Establishing structure-function relationships for specific mutations
Brain Slice Immunohistochemistry Optimization:
Modified protocol for epilepsy surgical specimens
Comparison of SCN10A distribution in epileptogenic vs. non-epileptogenic tissue
Co-localization with inhibitory interneuron markers to assess circuit-specific effects
Animal Model Validation Strategy:
Generate knock-in models of human SCN10A variants
Map developmental expression changes in models vs. controls
Correlate protein expression patterns with seizure susceptibility phenotypes
These approaches connect genetic variation to protein expression differences and ultimately to neuronal hyperexcitability phenotypes in epilepsy, providing critical insights for precision medicine approaches .
Different antibody formats offer distinct advantages for sodium channelopathy research. The following comparative analysis helps researchers select optimal tools:
Comprehensive Performance Comparison:
| Feature | Biotin-Conjugated Polyclonal | Unconjugated Monoclonal (e.g., EPR25132-222) | Fluorophore-Conjugated Antibodies |
|---|---|---|---|
| Detection Sensitivity | High (signal amplification via streptavidin) | Moderate (requires secondary antibody) | Moderate (direct detection) |
| Specificity | Good (polyclonal recognizes multiple epitopes) | Excellent (single epitope recognition) | Variable (depends on antibody) |
| Multiplexing Capability | Excellent (compatible with other antibody types) | Moderate (requires same-species considerations) | Limited (spectral overlap constraints) |
| Signal-to-Noise Ratio | Very good with proper blocking | Very good | Variable (direct fluorophore can increase background) |
| Applications Versatility | ELISA, IHC, IP | IHC-P, IHC-Fr | Flow cytometry, live imaging |
| Batch-to-Batch Consistency | Moderate | Excellent | Moderate to Excellent |
| Epitope Accessibility | Good (multiple epitopes recognized) | Limited (single epitope dependent) | Limited (single epitope dependent) |
| Cost Considerations | Moderate | Higher | Higher |
| Optimal Research Context | Protein interaction studies, Signal amplification needed | Precise localization, Reproducibility critical | Live cell imaging, Flow cytometry |
Strategic Selection Guidelines:
For Mutation/Variant Studies:
Monoclonal antibodies provide better specificity for detecting subtle conformational changes
Polyclonal biotin-conjugated antibodies offer better detection of partially denatured variants
For Low-Abundance Detection:
Biotin-conjugated formats with tyramide signal amplification provide superior sensitivity
Critical for detecting SCN10A in tissues with sparse expression
For Co-localization Studies:
Combine biotin-conjugated SCN10A antibody with directly labeled antibodies against other markers
Enables triple or quadruple labeling studies with minimal cross-reactivity
For Human Patient Samples:
Monoclonal antibodies generally provide more consistent results across variable fixation conditions
Biotin-conjugated antibodies offer signal enhancement in limited/precious samples
This framework guides selection of the optimal antibody format based on specific experimental requirements and tissue characteristics .
Different experimental models require specific methodological adaptations for optimal SCN10A antibody performance:
Model-Specific Protocol Adaptations:
Chronic Constriction Injury (CCI) Pain Model:
Fixation: 2% PFA/2% glutaraldehyde preserves ultrastructure at injury site
Tissue preparation: Longitudinal nerve sections (10μm) to visualize channel redistribution along axons
Antibody dilution: Use higher concentration (1:200) at injury site due to increased background
Detection system: Tyramide amplification recommended for subtle expression changes
Controls: Include sham-operated and contralateral nerves as critical comparisons
Inflammatory Pain Models (CFA, Carrageenan):
Timing: Optimal detection at 24-48h post-induction
Pre-treatment: Protease inhibitor addition to extraction buffers prevents degradation
Blocking: Extended blocking (2 hours) with 5% BSA reduces non-specific binding
Antibody incubation: Overnight at 4°C improves signal-to-noise ratio
Analysis: Pixel intensity normalization to housekeeping proteins essential for quantification
Genetic Epilepsy Models:
Antigen retrieval: Extended citrate buffer treatment (30 minutes) for fixed brain tissues
Background reduction: Sudan Black B treatment (0.1% in 70% ethanol) reduces lipofuscin interference
Antibody concentration: Lower dilutions (1:500-1:1000) reduce background in brain sections
Validation: Include age-matched control animals and pharmacologically-treated cohorts
Quantification: Z-stack confocal imaging with deconvolution for accurate subcellular localization
Induced Seizure Models (PTZ, Kainic Acid):
Timing: Time-course analysis (1h, 6h, 24h, 72h post-seizure) captures dynamic changes
Region specificity: Microdissection of hippocampal subregions for more precise analysis
Antibody protocol: Higher detergent concentration (0.3% Triton X-100) improves antibody penetration
Controls: Include non-seizing animals exposed to sub-threshold doses
Double-labeling: Co-stain with activity markers (c-Fos, Arc) to correlate with neuronal activation
Human Tissue Considerations:
Extended antigen retrieval: 40 minutes citrate buffer treatment for archival samples
Background quenching: Additional 0.3% H₂O₂ treatment before blocking
Antibody incubation: 48h at 4°C for improved penetration in human tissue
Detection system: Polymer-based detection with extended development times
Controls: Age-matched non-epileptic surgical specimens or post-mortem controls
These model-specific adaptations optimize detection sensitivity while maintaining specificity across diverse experimental paradigms .
Recent discoveries linking SCN10A mutations to both pain processing and epilepsy open promising research avenues using antibody-based approaches:
Integrated Research Framework:
Mechanistic Overlap Investigation:
Use SCN10A antibodies to map channel distribution in:
Peripheral nociceptors
Thalamocortical circuits
Limbic structures implicated in both pain and epilepsy
Correlate expression patterns with functional connectivity using combined immunohistochemistry and electrophysiology
Translational Biomarker Development:
Analyze SCN10A expression in accessible tissues (skin biopsies, blood-derived neurons) from patients with:
Drug-resistant epilepsy with comorbid pain
Epilepsy-related headache disorders
FIRES and post-seizure pain syndromes
Develop diagnostic algorithms combining antibody-based detection with genetic screening
Therapeutic Response Prediction:
Monitor SCN10A expression/distribution changes following:
Sodium channel blockers (carbamazepine, lamotrigine)
Novel selective Nav1.8 modulators
Non-pharmacological interventions (neurostimulation)
Establish predictive models linking expression patterns to treatment outcomes
Developmental Regulation Investigation:
Track SCN10A expression through developmental stages in:
Models of genetic epilepsies (SCN10A variants p.Thr1505Met, p.Arg1579*)
Early-life seizure models
Neonatal pain exposure models
Correlate with critical periods of heightened seizure susceptibility and pain sensitivity
Circuit-Specific Analysis Protocol:
Combined RNAscope and immunohistochemistry to identify:
Cell-type specific expression patterns
Activity-dependent regulation
Co-expression with other epilepsy/pain genes
Single-cell correlation of channel expression with electrophysiological properties
This multifaceted approach bridges molecular findings with clinical phenotypes, potentially revealing novel therapeutic targets for patients with comorbid conditions .
Emerging technologies are revolutionizing how SCN10A antibodies can contribute to personalized medicine:
Advanced Methodological Innovations:
Patient-Specific iPSC-Derived Neuronal Models:
Generate nociceptors and CNS neurons from patients with SCN10A variants
Utilize biotin-conjugated antibodies for:
High-content screening of channel expression
Automated quantification of trafficking defects
Response monitoring to potential therapeutic compounds
Correlation with electrophysiological phenotypes to establish genotype-phenotype relationships
Spatially Resolved Single-Cell Proteomics:
Combine SCN10A antibody detection with:
Imaging mass cytometry (IMC)
Multiplexed ion beam imaging (MIBI)
Digital spatial profiling (DSP)
Map complete channel interactomes at subcellular resolution
Identify cell-type specific dysregulation patterns in channelopathies
In Vivo Antibody-Based Imaging:
Develop SCN10A-targeted nanobodies for:
PET imaging of channel distribution in animal models
Monitoring dynamic changes during disease progression
Evaluating target engagement of novel therapeutics
Correlate imaging with functional outcomes and seizure/pain behaviors
Proximity Proteomics Applications:
Adapt antibodies for BioID or APEX2-based proximity labeling to:
Identify novel SCN10A-interacting proteins
Compare interactomes between wild-type and variant channels
Discover potential drug targets within channel complexes
Integrate with genetic data to prioritize therapeutic strategies
Antibody-Based Therapeutic Delivery Systems:
Utilize SCN10A antibodies as targeting moieties for:
Nanoparticle delivery of channel modulators
Cell-specific gene therapy vectors
Photoactivatable compounds for precise spatiotemporal control
Develop companion diagnostics to identify patients likely to respond
These emerging approaches will transform SCN10A antibodies from purely research tools into critical components of precision medicine platforms for channelopathy management, enabling patient-specific therapeutic strategies based on molecular phenotyping .
Comprehensive Validation Protocol:
Initial Specificity Validation:
Western Blot Analysis:
Expected molecular weight: ~220 kDa
Sample preparation: Membrane fraction enrichment
Positive control: Transfected cells overexpressing SCN10A
Negative control: Knockout/knockdown samples
Application-Specific Validation:
For ELISA:
Standard curve with recombinant protein (992-1099AA fragment)
Minimum detection threshold determination
Intra- and inter-assay coefficient of variation (<15%)
For IHC:
Tissue panel with known expression patterns
Signal specificity confirmed by peptide competition
Correlation with in situ hybridization data
Strategic Troubleshooting Flowchart:
| Problem | Potential Cause | Solution |
|---|---|---|
| No signal | Epitope denaturation | Try multiple antigen retrieval methods |
| Target degradation | Add protease inhibitors during preparation | |
| Insufficient permeabilization | Optimize detergent concentration | |
| High background | Endogenous biotin | Avidin/biotin blocking step |
| Non-specific binding | Increase BSA in blocking buffer | |
| Secondary reagent issues | Include secondary-only controls | |
| Multiple bands | Degradation products | Use fresh samples, add protease inhibitors |
| Splice variants | Verify with PCR analysis of variants | |
| Cross-reactivity | Perform pre-absorption with related proteins | |
| Poor reproducibility | Antibody instability | Aliquot and avoid freeze-thaw cycles |
| Sample variability | Standardize preparation protocols | |
| Batch variations | Use consistent lot numbers for critical experiments |
Documentation Best Practices:
Maintain detailed records of:
Antibody lot numbers and storage conditions
Complete experimental protocols with all parameters
Positive and negative control results
Quantification methods and thresholds
Include validation data in publications and repositories
This systematic approach ensures robust, reproducible results and facilitates troubleshooting when unexpected results occur .
Comprehensive Resource Directory:
Research Tools and Reagents:
Antibody Resources:
Biotin-conjugated polyclonal (AFG Scientific A58619, Assay Genie PACO57239)
Monoclonal antibodies (Abcam EPR25132-222)
Comparison database: Biocompare antibody product listings (167 SCN10A antibodies across 25 suppliers)
Genetic Tools:
SCN10A knockout mouse models
CRISPR-Cas9 targeting constructs for specific variants
Patient-derived iPSC lines with SCN10A mutations
Databases and Bioinformatics Resources:
Genetic Information:
ClinVar database of SCN10A variants
DECIPHER database for phenotype-genotype correlations
Epilepsy Genetics Initiative (EGI) for variant interpretation
Protein Structure/Function:
UniProt entry (Q9Y5Y9) with detailed annotations
Protein Data Bank for sodium channel structures
AlphaFold predicted structures of SCN10A
Patient Cohort Resources:
Epilepsy Consortia Data:
EuroEPINOMICS database
Epi4K/EPGP dataset with WES data on 356 patients
Autism dbGaP dataset with potential SCN10A variants
Pain Research Networks:
IASP Special Interest Group on Neuropathic Pain
German Research Network on Neuropathic Pain
Methodological Protocols:
Published Optimized Protocols:
Immunohistochemistry for peripheral nerve tissues
Co-immunoprecipitation for channel complex isolation
Electrophysiological characterization of variant channels
Standard Operating Procedures:
Antibody validation workflows
Patient sample processing guidelines
Data standardization frameworks
Collaborative Research Initiatives:
Multi-Center Projects:
International SCN Consortium
Epilepsy Genetics Research Program
Pain Channel Alliance
Resource Sharing Platforms:
Addgene for plasmid repositories
Jackson Laboratory for mouse models
Human Tissue Biobanks with channelopathy samples
These resources provide essential support for researchers investigating SCN10A in neurological disorders, facilitating translation of basic research findings into clinical applications .