KEGG: spo:SPCC1682.06
SPCC1682.06 refers to an uncharacterized membrane protein in Schizosaccharomyces pombe (fission yeast). The protein is classified as a multi-pass membrane protein, suggesting it traverses the cell membrane multiple times. While its precise function remains under investigation, research indicates potential roles in membrane-associated cellular processes. Studying this protein using antibody-based detection methods helps elucidate its biological significance in fundamental eukaryotic processes that may be conserved across species .
The SPCC1682.06 antibody is a polyclonal antibody raised in rabbits using recombinant Schizosaccharomyces pombe (strain 972/ATCC 24843) SPCC1682.06 protein as the immunogen . The antibody has the following specifications:
Isotype: IgG
Clonality: Polyclonal
Purification method: Antigen affinity purified
Storage buffer: Preservative (0.03% Proclin 300), 50% Glycerol, 0.01M PBS, pH 7.4
Form: Liquid (non-conjugated)
The SPCC1682.06 protein is characterized as a multi-pass membrane protein, which significantly impacts experimental design in several ways. Membrane proteins require specialized extraction protocols using appropriate detergents to maintain protein integrity and native conformation. When designing immunolocalization experiments, researchers should consider:
Cell fixation methods that preserve membrane integrity
Permeabilization techniques compatible with membrane proteins
Blocking reagents that minimize non-specific binding to hydrophobic domains
Subcellular fractionation approaches to enrich membrane components
For optimal results when working with SPCC1682.06 antibody, consider using mild detergents like Triton X-100 or digitonin rather than harsh ionic detergents that may denature membrane proteins and affect epitope recognition .
The SPCC1682.06 antibody has been validated for the following applications:
When designing experiments, researchers should note that this antibody is specifically reactive against Schizosaccharomyces pombe (strain 972/ATCC 24843) . While cross-reactivity with other strains or species is possible, validation studies should be conducted before expanding applications beyond the confirmed reactivity.
While specific optimized protocols should be developed for each experimental system, a general Western blotting protocol for SPCC1682.06 antibody would include:
Sample preparation:
Harvest S. pombe cells in exponential growth phase
Lyse cells in buffer containing appropriate detergents for membrane protein extraction
Add protease inhibitors to prevent degradation
Protein separation:
Denature samples at 95°C for 5 minutes in sample buffer
Separate proteins using 10-12% SDS-PAGE gels
Transfer and detection:
Transfer proteins to PVDF or nitrocellulose membrane
Block with 5% non-fat milk or BSA in TBST
Incubate with SPCC1682.06 antibody (recommended dilution range: 1:500-1:2000)
Wash and incubate with appropriate secondary antibody
Develop using chemiluminescence detection
For membrane proteins like SPCC1682.06, it's advisable to avoid boiling samples for extended periods as this may cause protein aggregation .
Based on the association of related proteins in the SPCC1682 family with cell cycle regulation, SPCC1682.06 antibody may be valuable for investigating cell cycle dynamics in S. pombe . Methodological approaches include:
Synchronization experiments:
Synchronize yeast cultures using methods like nitrogen starvation and release
Collect samples at different cell cycle phases
Analyze SPCC1682.06 protein expression via Western blot
Correlate expression patterns with cell cycle markers
Co-immunoprecipitation studies:
Use SPCC1682.06 antibody for pull-down experiments
Identify interacting proteins during different cell cycle stages
Analyze complexes by mass spectrometry
Immunofluorescence microscopy:
Track SPCC1682.06 localization throughout the cell cycle
Co-stain with cell cycle markers and DNA
The findings from related gene SPCC1682.13 suggest potential roles in chromatin organization, which may extend to SPCC1682.06 with appropriate experimental validation .
Research on related genes in the SPCC1682 family has shown significant expression changes under copper stress conditions. While SPCC1682.06 was not directly studied in the cited research, the relationship between SPCC1682.13 and copper stress provides a framework for investigating SPCC1682.06 response .
A methodological approach to study SPCC1682.06 under copper stress would include:
Exposure protocol:
Culture S. pombe cells to mid-log phase
Treat with varying copper concentrations (typically 0.1-2 mM CuSO₄)
Harvest cells at multiple time points (0, 30, 60, 120 minutes)
Expression analysis:
Extract total protein while preserving membrane fractions
Quantify SPCC1682.06 protein levels via Western blot using the antibody
Normalize against loading controls appropriate for membrane proteins
Functional assessment:
Correlate protein levels with phenotypic changes under copper stress
Examine cell cycle progression and growth rate
Analyze potential changes in subcellular localization
Based on findings with related proteins, researchers might expect alterations in SPCC1682.06 expression as part of the cellular response to copper-induced stress .
The SPCC1682.06 antibody is produced using a recombinant full-length protein as the immunogen . This has important implications for experimental design:
Epitope accessibility analysis:
For membrane proteins like SPCC1682.06, certain epitopes may be embedded in the membrane
Detergent selection critically impacts epitope exposure during extraction
Sample preparation methods should be optimized to maintain recognition sites
Potential cross-reactivity assessment:
Conduct bioinformatic analysis to identify proteins with similar epitopes
Include appropriate controls to verify specificity
Consider pre-absorption steps if cross-reactivity is observed
Fixation impact:
Different fixatives (paraformaldehyde vs. methanol) may differentially affect epitope presentation
Optimize fixation duration and conditions for membrane protein preservation
Test multiple antibody concentrations with each fixation method
Understanding these epitope-specific considerations helps researchers develop more robust protocols and accurately interpret experimental results when using the SPCC1682.06 antibody .
The SPCC1682.06 antibody requires specific storage and handling conditions to maintain its activity and specificity:
| Storage Parameter | Recommended Condition | Notes |
|---|---|---|
| Temperature | -20°C or -80°C | Avoid repeated freeze-thaw cycles |
| Buffer composition | 0.03% Proclin 300, 50% Glycerol, 0.01M PBS, pH 7.4 | Preservative helps maintain stability |
| Aliquoting | Prepare single-use aliquots | Minimizes freeze-thaw damage |
| Working dilution storage | 4°C for up to 7 days | Prepare fresh for optimal results |
| Shipping condition | Shipped with ice packs | Maintain cold chain during transport |
For optimal performance, researchers should:
Avoid repeated freeze-thaw cycles by preparing appropriately sized aliquots
Centrifuge the antibody vial briefly before opening to collect liquid at the bottom
Maintain sterile technique when handling to prevent contamination
Document lot number and receipt date for experimental reproducibility
When extending SPCC1682.06 antibody use to applications beyond the vendor-validated ELISA and Western blot, researchers should implement a systematic validation approach:
Specificity validation:
Compare signal between wild-type and SPCC1682.06 knockout/knockdown samples
Perform peptide competition assays using the immunizing antigen
Analyze multiple antibody dilutions to establish optimal signal-to-noise ratio
Cross-technique validation:
Confirm findings using orthogonal detection methods
Compare protein localization across immunofluorescence, subcellular fractionation, and biochemical approaches
Verify size and pattern consistency across multiple experimental conditions
Quantitative assessment:
Establish linear dynamic range for quantitative applications
Determine limit of detection and quantification
Generate standard curves using recombinant protein if available
Reproducibility testing:
Perform technical and biological replicates
Document batch variations
Test multiple sample preparation methods
This systematic approach ensures reliable data generation when adapting SPCC1682.06 antibody to novel research applications .
The TSC (Tuberous Sclerosis Complex) pathway has been studied in fission yeast as a model system . When investigating potential relationships between SPCC1682.06 and the TSC pathway, researchers should consider:
Genetic interaction analysis:
Generate double mutants combining SPCC1682.06 deletion with tsc1/tsc2 mutations
Assess synthetic growth defects or rescue phenotypes
Examine effects on downstream signaling components like Rhb1 (yeast homolog of Rheb)
Phosphorylation state analysis:
Use phospho-specific antibodies alongside SPCC1682.06 antibody
Investigate whether SPCC1682.06 is modified in response to TSC pathway perturbation
Apply phosphatase treatments to samples before immunoblotting
Nutritional response experiments:
Study SPCC1682.06 expression under nitrogen starvation conditions known to affect the TSC pathway
Compare localization patterns in normal and nutrient-deprived states
Assess co-localization with known TSC pathway components
This approach helps elucidate whether SPCC1682.06 functions within or parallel to the TSC signaling network in fission yeast .
When using SPCC1682.06 antibody for Western blotting, researchers may encounter unexpected band patterns requiring careful interpretation:
Multiple bands analysis:
Expected size of SPCC1682.06 protein should be verified against database predictions
Higher molecular weight bands may indicate post-translational modifications or complexes
Lower molecular weight bands could represent degradation products or isoforms
Methodological troubleshooting:
Non-specific binding: Increase blocking time/concentration or try alternative blocking agents
No signal: Verify protein transfer efficiency and consider extraction methods optimized for membrane proteins
High background: Adjust antibody dilution, increase washing steps, or try alternative washing buffers
Verification strategies:
Compare lysates from different growth conditions known to affect expression
Include recombinant protein as positive control where available
Consider alternative antibody clones if consistent problems persist
Documentation of experimental conditions and detailed protocol parameters is essential for interpreting Western blot results and troubleshooting variability between experiments .
As SPCC1682.06 is a multi-pass membrane protein, researchers may encounter specific challenges in its detection:
Extraction optimization:
Test multiple detergent types (non-ionic, zwitterionic, and ionic) at various concentrations
Evaluate detergent-to-protein ratios for optimal solubilization
Consider membrane fractionation before solubilization to enrich target protein
Aggregation prevention:
Avoid sample boiling when possible; heat to 37-50°C for longer periods instead
Include reducing agents like DTT or β-mercaptoethanol to disrupt disulfide bonds
Add mild denaturants like urea (≤4M) to improve solubilization without complete denaturation
Transfer enhancement techniques:
Use PVDF membranes instead of nitrocellulose for hydrophobic proteins
Add SDS (0.1%) to transfer buffer to improve elution from gel
Extend transfer time or use specialized transfer systems for high-molecular-weight proteins
Signal enhancement strategies:
Implement epitope retrieval methods before antibody incubation
Use signal amplification systems for low-abundance detection
Consider alternative detection methods like proximity ligation assay for improved sensitivity
These methodological adjustments can significantly improve detection outcomes when working with challenging membrane proteins like SPCC1682.06 .
Related proteins in the SPCC1682 family have demonstrated roles in chromatin remodeling and histone deacetylation . To investigate whether SPCC1682.06 shares similar functions, researchers can:
Design chromatin immunoprecipitation (ChIP) experiments:
Optimize fixation conditions for membrane-nuclear interactions
Use SPCC1682.06 antibody for ChIP followed by sequencing (ChIP-seq)
Analyze binding patterns in relation to histone modification markers
Develop co-immunoprecipitation approaches:
Investigate interactions between SPCC1682.06 and known chromatin modifiers
Extract nuclear and membrane fractions separately to analyze compartment-specific interactions
Compare interaction profiles under different physiological conditions
Implement functional genomics strategies:
Combine SPCC1682.06 overexpression or depletion with transcriptome analysis
Assess changes in histone modification patterns using mass spectrometry
Correlate alterations with phenotypic outcomes related to chromatin organization
These approaches can help establish whether SPCC1682.06 participates in chromatin regulation pathways similar to other proteins in its family .
Given the potential relationship between SPCC1682.06 and cell cycle regulation suggested by studies of related genes , researchers can implement several methodological approaches:
Cell synchronization techniques:
Implement nitrogen starvation/release protocols to synchronize S. pombe cultures
Collect time-course samples for protein analysis using SPCC1682.06 antibody
Correlate protein expression or modification patterns with cell cycle markers
Live-cell imaging strategies:
Generate fluorescently tagged SPCC1682.06 constructs
Validate expression patterns using the antibody in fixed cells
Track protein dynamics throughout cell division in real-time
Genetic interaction mapping:
Create double mutants combining SPCC1682.06 disruption with known cell cycle regulators
Analyze synthetic phenotypes using growth assays and microscopy
Use antibody-based approaches to assess impacts on downstream signaling
These methodological frameworks enable researchers to elucidate potential roles of SPCC1682.06 in cell cycle regulation, building on findings from related proteins in the S. pombe system .