KCNK15 is a human potassium channel protein involved in maintaining cellular membrane potential and ion homeostasis. Its dysregulation has been implicated in various physiological processes, though its role in disease pathology remains under investigation . The antibody targets epitopes in the middle region (AA 200–300) of the protein, with cross-reactivity observed in humans, cows, dogs, and pigs .
HRP conjugation involves covalent bonding of the enzyme to the antibody via lysine residues. Traditional methods require multiple purification steps, but commercial kits like Lightning-Link® HRP simplify the process through a single-step, 30-minute protocol . Key considerations include:
Buffer Compatibility: Tris, glycine, or BSA-containing buffers may interfere with conjugation efficiency .
Stability: HRP conjugates are sensitive to sodium azide, necessitating alternative preservatives like ProClin™ .
Western Blot: Detects KCNK15 in human cell lysates with high specificity .
ELISA: Quantifies KCNK15 in serum or tissue homogenates using chromogenic substrates like TMB or ABTS .
Immunohistochemistry (IHC): Localizes KCNK15 expression in formalin-fixed paraffin-embedded (FFPE) tissues .
| Substrate | Detection Method | Color/Output |
|---|---|---|
| Diaminobenzidine (DAB) | Chromogenic | Brown precipitate |
| TMB | Chromogenic | Blue (absorbance at 650 nm) |
| Enhanced Chemiluminescence (ECL) | Chemiluminescent | Light emission |
KCNK15 (Potassium channel subfamily K member 15) is a probable potassium channel subunit, also known as TASK-5 (TWIK-related acid-sensitive K(+) channel 5). It belongs to the two-pore potassium channel family. Although no channel activity has been observed in heterologous systems, research suggests it may need to associate with another protein to form a functional channel . KCNK15 is involved in potassium ion transport across cellular membranes and may play roles in membrane excitability and cellular homeostasis.
The protein functions in the context of signal transduction pathways , making it relevant to neurological, cardiac, and oncological research. Current evidence indicates KCNK15 has potential significance in cancer biology, particularly in thyroid and lung cancers .
KCNK15 Antibody,HRP conjugated is typically a rabbit polyclonal antibody targeting human KCNK15. The key specifications include:
| Specification | Details |
|---|---|
| Host | Rabbit |
| Clonality | Polyclonal |
| Target Species | Human |
| Immunogen | Recombinant Human Potassium channel subfamily K member 15 protein (244-330AA) |
| Conjugate | HRP (Horseradish Peroxidase) |
| Applications | ELISA |
| Purification Method | Antigen Affinity purified & Affinity purified |
| Buffer Composition | 0.03% Proclin 300, 50% Glycerol, 0.01M PBS, pH 7.4 |
| Form | Liquid |
| Target Molecular Weight | 36 kDa |
For optimal preservation of antibody activity:
| Application | Recommended Dilution | Notes |
|---|---|---|
| ELISA | 1:20000 | HRP-conjugated version is optimized for this application |
| Western Blotting (WB) | 1:500-1:3000 | For unconjugated versions; protocol optimization recommended |
| Immunohistochemistry (IHC) | 1:50-1:100 | For unconjugated versions; antigen retrieval may be necessary |
When transitioning between applications, researchers should validate the antibody's performance in their specific experimental system .
For rigorous experimental design with KCNK15 Antibody,HRP conjugated:
Positive Control: Include a sample known to express KCNK15 (e.g., relevant human cancer cell lines based on research context)
Negative Control:
Blocking Peptide Control: When available, using the immunizing peptide to pre-absorb the antibody can confirm specificity
Cross-Reactivity Considerations: If working with non-human samples, note the predicted reactivity percentages: Cow: 83%, Dog: 93%, Human: 100%, Pig: 92%
Secondary Antibody Controls: For non-conjugated versions requiring secondary antibodies, include secondary-only controls
For optimal ELISA performance with KCNK15 Antibody,HRP conjugated:
Dilution Optimization: Start with the recommended 1:20000 dilution , but perform a titration experiment (1:10000 to 1:40000) to determine optimal signal-to-noise ratio for your specific samples
Blocking Protocol: Use 5% non-fat dry milk or 3% BSA in PBS-T to minimize non-specific binding
Sample Preparation:
For cell lysates: Use a buffer containing protease inhibitors
For tissue samples: Homogenize thoroughly and ensure uniform protein concentration
Incubation Conditions:
Temperature: Perform primary antibody incubation at 4°C overnight for maximum specificity
Washing: Include at least 3-5 washes with PBS-T between steps to reduce background
Signal Development:
Since the antibody is HRP-conjugated, use appropriate substrates like TMB
Monitor color development to avoid saturation
Consider measuring at multiple timepoints for optimal signal
Troubleshooting:
High background: Increase dilution or blocking time
Weak signal: Decrease dilution or increase sample concentration
Research has shown significant upregulation of KCNK15 mRNA expression in thyroid cancer tissues compared to normal tissues . To investigate this association:
Expression Analysis:
Prognostic Value Assessment:
Design studies correlating KCNK15 protein levels with patient survival data
Implement multivariate analyses to evaluate KCNK15 as an independent prognostic marker
Mechanistic Studies:
Biomarker Development:
Evaluate KCNK15 antibody performance in multiplex assays with other thyroid cancer markers
Develop standardized ELISA protocols for potential clinical application
Therapeutic Target Validation:
Use in drug screening assays targeting KCNK15
Monitor KCNK15 expression changes in response to various treatment modalities
While KCNK15 is the protein target of the antibody, research has revealed intriguing connections with KCNK15-AS1 (antisense RNA) in cancer:
Dual Expression Analysis:
Functional Relationship:
Research Application Strategy:
Use KCNK15 Antibody,HRP conjugated alongside RNA detection methods for KCNK15-AS1
Investigate potential regulatory relationships between the antisense RNA and protein expression
Examine correlation between KCNK15 protein levels and KCNK15-AS1 expression in the same samples
Signaling Pathway Analysis:
Explore whether KCNK15 protein function is affected by KCNK15-AS1 expression
Determine if KCNK15-AS1 functions independently of KCNK15 protein
When investigating discrepancies between KCNK15 mRNA and protein expression:
Multi-level Validation:
Post-transcriptional Regulation Assessment:
Investigate miRNA targeting of KCNK15 mRNA
Examine KCNK15 mRNA stability using actinomycin D chase experiments
Analyze polysome profiles to assess translational efficiency
Protein Stability Analysis:
Perform cycloheximide chase experiments to determine KCNK15 protein half-life
Investigate proteasomal and lysosomal degradation pathways
Assess post-translational modifications that might affect antibody recognition
Subcellular Localization Studies:
Use cell fractionation followed by Western blot
Perform immunocytochemistry to determine if protein is sequestered in specific compartments
Consider native versus denatured protein detection methods
Cross-platform Comparison:
To establish confidence in antibody specificity:
Epitope Analysis:
Knockout/Knockdown Validation:
Generate KCNK15 knockdown using siRNA or CRISPR-Cas9
Confirm signal reduction/elimination in knockout samples
Overexpression Studies:
Express tagged KCNK15 in a system with low endogenous expression
Confirm co-localization of tag and antibody signals
Peptide Competition:
Pre-incubate antibody with excess immunizing peptide
Verify signal abolishment in subsequent assays
Cross-Reactivity Assessment:
Several biological and technical factors can impact detection:
Sample Preparation Issues:
Insufficient protein extraction from membrane fractions (KCNK15 is a membrane protein)
Protein degradation during isolation
Epitope masking due to fixation conditions (especially for IHC)
Experimental Variables:
Buffer composition affecting antibody binding
Presence of detergents that might denature the epitope
pH conditions altering antibody-antigen interaction
Biological Variability:
Post-translational modifications affecting epitope recognition
Alternative splicing generating isoforms not recognized by the antibody
Protein-protein interactions masking antibody binding sites
Technical Recommendations:
Use multiple extraction methods to ensure comprehensive protein isolation
Include protease and phosphatase inhibitors in all buffers
Consider native versus denaturing conditions depending on epitope location
Emerging research opportunities include:
Cancer Biology Applications:
Signaling Pathway Integration:
Map the relationship between KCNK15 expression and major oncogenic pathways
Investigate KCNK15 regulation by growth factors and cellular stress
Explore potential roles in cell migration and invasion processes
Therapeutic Target Validation:
Screen compounds specifically targeting KCNK15
Evaluate KCNK15 as a predictive marker for response to existing therapies
Investigate combinatorial approaches targeting multiple ion channels
Clinical Translation Potential:
Develop standardized ELISA protocols for potential diagnostic applications
Explore KCNK15 in liquid biopsy approaches
Correlate KCNK15 levels with treatment response and disease progression
Future technological developments could include:
Advanced Conjugation Options:
Expanding beyond HRP to fluorescent conjugates for multicolor flow cytometry
Developing antibody fragments for improved tissue penetration
Creating bispecific antibodies targeting KCNK15 and relevant signaling partners
Single-Cell Applications:
Adapting KCNK15 antibodies for mass cytometry (CyTOF)
Developing protocols for single-cell Western blotting
Integrating with spatial transcriptomics technologies
Functional Assays:
Developing antibodies that modulate channel function
Creating toolkits for measuring KCNK15 channel activity in live cells
Combining with electrophysiology for structure-function studies
Clinical Research Applications:
Standardizing KCNK15 detection for potential companion diagnostic development
Creating multiplex assays including multiple KCNK family members
Developing automation-compatible high-throughput protocols