SPAC4A8.10 Antibody (Product Code: CSB-PA519362XA01SXV) is a polyclonal antibody raised in rabbit against recombinant Schizosaccharomyces pombe (strain 972 / ATCC 24843) SPAC4A8.10 protein. This antibody specifically targets the SPAC4A8.10 protein in fission yeast with the UniProt identification number O14162. The antibody is produced through antigen affinity purification methods and is available in liquid form without conjugation .
The antibody is classified as IgG isotype and is intended strictly for research applications, not for diagnostic or therapeutic procedures. Its species reactivity is specifically limited to Schizosaccharomyces pombe (strain 972 / ATCC 24843), making it a specialized tool for fission yeast research .
For optimal antibody performance and longevity, SPAC4A8.10 Antibody should be stored at either -20°C or -80°C immediately upon receipt. Importantly, repeated freeze-thaw cycles should be strictly avoided as they can compromise antibody integrity and binding efficiency . The antibody is provided in a storage buffer containing:
These components help maintain antibody stability during storage. For researchers planning long-term studies, it is advisable to aliquot the antibody into smaller volumes upon initial thawing to minimize freeze-thaw cycles for subsequent experiments.
SPAC4A8.10 Antibody has been validated for specific research applications through rigorous testing. The confirmed applications include:
These applications have been experimentally validated to ensure proper identification of the target antigen. When designing experiments utilizing this antibody, researchers should initially adhere to these validated applications before attempting additional techniques that would require further optimization and validation.
Proper experimental controls are essential for generating reliable data with SPAC4A8.10 Antibody. A comprehensive control strategy should include:
Positive Controls:
Wild-type S. pombe (strain 972 / ATCC 24843) lysates expressing SPAC4A8.10
Recombinant SPAC4A8.10 protein (identical to the immunogen)
Negative Controls:
SPAC4A8.10 knockout/deletion mutant lysates
Non-target species lysates (e.g., S. cerevisiae) to confirm specificity
Primary antibody omission control
Secondary antibody-only control
When analyzing protein-protein interactions, as demonstrated in various antibody research approaches, including two-hybrid protein-protein interaction assays, researchers should systematically validate findings using multiple methodological approaches . For instance, when evaluating stress response pathways, confirmation through both co-immunoprecipitation and functional assays provides more robust evidence than either technique alone.
Western blotting with SPAC4A8.10 Antibody requires careful optimization to ensure specific detection of the target protein. Based on established antibody optimization protocols, the following systematic approach is recommended:
Sample Preparation:
Lyse S. pombe cells under non-denaturing conditions to preserve epitope structure
Include protease inhibitors to prevent target degradation
Standardize protein quantification using BCA or Bradford assays
Blocking Optimization:
Test multiple blocking agents (5% BSA, 5% non-fat milk, commercial blockers)
Determine optimal blocking time (1-2 hours at room temperature or overnight at 4°C)
Antibody Dilution Series:
Perform an initial dilution series (1:500, 1:1000, 1:2000, 1:5000)
Evaluate signal-to-noise ratio to determine optimal concentration
Incubation Parameters:
Test both room temperature (1-2 hours) and 4°C (overnight) incubation
Compare continuous gentle agitation versus static incubation
Similar to optimization approaches used for other antibodies, researchers should document all parameters systematically to identify conditions yielding maximum specificity with minimal background .
Cross-reactivity assessment is crucial for antibody specificity validation, particularly with polyclonal antibodies like SPAC4A8.10. Based on established antibody validation principles, researchers should implement:
Comparative Analysis:
Test reactivity against related proteins with structural homology
Include closely related species (e.g., other Schizosaccharomyces species)
Analyze potential cross-reactivity with human or other model organism proteins if conducting comparative studies
Specificity Verification Methods:
Pre-absorption tests with recombinant SPAC4A8.10 protein
Peptide competition assays
Parallel testing in knockout/knockdown models
Cross-reactivity assessment approaches have been well-documented in antibody research literature, noting that comprehensive validation significantly improves experimental reliability across applications .
SPAC4A8.10 Antibody can serve as a valuable tool for investigating protein-protein interactions using multiple complementary techniques. Drawing from established protein interaction methodologies, researchers could implement:
Co-immunoprecipitation (Co-IP):
Use SPAC4A8.10 Antibody to immunoprecipitate the target protein along with binding partners
Analyze precipitated complexes via mass spectrometry for unbiased interactome mapping
Confirm specific interactions with targeted Western blotting
Proximity Ligation Assays:
Combine SPAC4A8.10 Antibody with antibodies against suspected interaction partners
Visualize protein-protein interactions in situ with subcellular resolution
Two-Hybrid Validation:
Similar approaches have been successfully employed in studying protein interactions in stress response pathways, where antibodies were used to purify protein complexes for subsequent mass spectrometry analysis, resulting in the identification of numerous interacting partners .
Stress response research represents a significant application area for SPAC4A8.10 Antibody, particularly if the target protein functions in cellular stress pathways. Based on established stress response research protocols, researchers should consider:
Stress Condition Optimization:
Test multiple stress types (temperature, oxidative, osmotic, nutritional)
Establish precise time-course parameters for acute versus chronic stress
Document stress intensity gradients for dose-response relationships
Subcellular Localization Analysis:
Monitor potential translocation of SPAC4A8.10 under stress conditions
Combine antibody-based detection with GFP-tagged constructs for live-cell imaging
Implement subcellular fractionation to quantify compartment-specific distribution
Protein Complex Dynamics:
Analyze stress-induced changes in SPAC4A8.10 interaction partners
Evaluate post-translational modifications arising during stress response
Compare interaction profiles between normal and stress conditions
This approach parallels methodologies used in glucocorticoid receptor stress response research, where researchers identified temperature-specific protein interactions through comparative immunoprecipitation followed by mass spectrometry analysis .
| Experimental Condition | Sample Preparation | Antibody Dilution | Detection Method | Control Type |
|---|---|---|---|---|
| Normal Growth (30°C) | Native lysis | 1:1000 | Chemiluminescence | SPAC4A8.10 KO |
| Heat Stress (39°C) | Native lysis | 1:1000 | Chemiluminescence | SPAC4A8.10 KO |
| Oxidative Stress | Native lysis | 1:1000 | Chemiluminescence | SPAC4A8.10 KO |
| Nutrient Limitation | Native lysis | 1:1000 | Chemiluminescence | SPAC4A8.10 KO |
Integrating SPAC4A8.10 Antibody with complementary techniques creates powerful research workflows for comprehensive protein characterization. Researchers can implement multi-technique approaches including:
Combined Omics Pipeline:
Use antibody-based purification followed by mass spectrometry
Correlate protein interaction data with transcriptomics profiles
Integrate with metabolomics to establish functional relationships
Structure-Function Analysis:
Combine antibody-detected expression patterns with mutation studies
Correlate protein abundance with functional assays
Map antibody epitopes to functional domains for structure-activity relationships
Temporal Dynamics Analysis:
Synchronize cell populations to study cell-cycle-dependent changes
Implement time-course experiments with precisely timed sampling
Correlate protein levels with cellular phenotypes across developmental stages
Similar integrated approaches have been successfully employed in stress response research, where antibody-based techniques were combined with functional thermotolerance assays and gene expression analysis to establish comprehensive pathway understanding .
When confronting weak or absent signals with SPAC4A8.10 Antibody, a systematic troubleshooting approach is essential. Based on established antibody troubleshooting protocols, researchers should consider:
Protein Expression Verification:
Confirm target protein expression using alternative detection methods
Verify sample integrity through detection of housekeeping proteins
Consider potential post-translational modifications affecting epitope accessibility
Technical Optimization:
Reduce stringency of washing steps
Increase antibody concentration
Extend incubation periods
Test alternative detection systems with higher sensitivity
Sample Preparation Refinement:
Optimize protein extraction methods
Test different lysis buffers
Evaluate need for denaturation vs. native conditions
Consider epitope masking in protein complexes
This methodical approach mirrors troubleshooting strategies employed for antibodies with challenging targets, where systematic optimization successfully resolved detection issues .
Non-specific binding represents a common challenge with polyclonal antibodies. When encountering this issue with SPAC4A8.10 Antibody, researchers should implement a targeted optimization strategy:
Blocking Enhancement:
Test alternative blocking agents (casein, fish gelatin, commercial formulations)
Extend blocking duration
Add blocking agents to antibody dilution buffer
Wash Protocol Optimization:
Increase wash buffer stringency (higher detergent concentration)
Extend washing duration and number of wash cycles
Consider alternative detergents (Tween-20, Triton X-100, NP-40)
Antibody Conditioning:
Pre-absorb antibody with non-target proteins
Increase antibody dilution
Implement subtractive approaches using knockout/knockdown samples
These approaches align with strategies used to optimize antibody specificity in challenging systems, where methodical refinement successfully minimized background while maintaining specific signal detection .
Contradictory results across different applications require careful analysis and reconciliation. When confronting such discrepancies with SPAC4A8.10 Antibody, researchers should consider:
Application-Specific Epitope Accessibility:
Recognize that different applications expose different protein conformations
Native versus denatured conditions affect epitope accessibility
Fixation methods can alter protein structure and antibody recognition
Comprehensive Validation Strategy:
Confirm results with alternative antibodies targeting different epitopes
Implement orthogonal detection methods (mass spectrometry, PCR)
Utilize tagged protein constructs as parallel validation
Environmental Variable Analysis:
Document differences in sample preparation between applications
Evaluate buffer composition variations
Consider protein complex dynamics in different experimental contexts
This analytical approach has proven effective in resolving contradictory findings in antibody-based research, where technique-specific factors were systematically identified and addressed .
SPAC4A8.10 Antibody applications can be extended through integration with emerging technologies, significantly expanding research capabilities. Based on current trends in antibody-based research, promising directions include:
Advanced Imaging Technologies:
Super-resolution microscopy for precise subcellular localization
Expansion microscopy for improved spatial resolution
Label-free detection methods for live-cell dynamics
Single-Cell Applications:
Antibody-based techniques adapted for single-cell proteomics
Spatial transcriptomics combined with protein detection
Microfluidic platforms for high-throughput single-cell analysis
Structural Analysis Integration:
Combining antibody epitope mapping with cryo-EM structural analysis
In-cell NMR with antibody validation
Proximity labeling approaches for interaction domain mapping
These technological integrations parallel innovative approaches being implemented across antibody research fields, where multi-modal analysis provides unprecedented insights into protein function and dynamics .
SPAC4A8.10 Antibody offers significant potential for mapping stress response pathways in S. pombe, particularly when implemented within comprehensive research frameworks. Based on established stress response research methodologies, researchers could:
Develop Interactome Maps:
Use antibody-based purification under various stress conditions
Identify condition-specific interaction partners via mass spectrometry
Create dynamic interaction networks across stress response timepoints
Characterize Functional Domains:
Combine antibody detection with domain mutation analysis
Map regions essential for stress-induced interactions
Identify regulatory motifs through correlation of structural features with stress response
Establish Evolutionary Conservation:
Compare SPAC4A8.10 interactions with homologous proteins across species
Identify conserved versus species-specific stress response mechanisms
Evaluate potential therapeutic targets in pathogenic fungi
This approach builds upon methodologies successfully employed in stress response research, where systematic protein interaction analysis revealed novel pathway components and regulatory mechanisms .
Despite its validated applications, significant research opportunities remain for SPAC4A8.10 Antibody in advancing understanding of S. pombe biology. Future research directions with substantial potential impact include:
Systems Biology Integration:
Multi-omics investigations correlating protein dynamics with global cellular responses
Network analysis identifying central regulatory hubs in stress response
Modeling approaches predicting phenotypic outcomes from protein interaction maps
Comparative Model Organism Studies:
Cross-species investigations of conserved protein functionality
Evolutionary analysis of stress response pathways
Translation of findings to higher eukaryotic systems
Methodological Innovations:
Development of SPAC4A8.10-specific biosensors
Implementation of optogenetic approaches for dynamic analysis
Integration with CRISPR-based interrogation systems
These research frontiers reflect broader trends in antibody-based biological investigation, where integrative approaches continue to reveal previously unrecognized aspects of protein function and regulation .