SPBC19G7.17 Antibody

What is SPBC19G7.17 and what research applications is its antibody validated for?

SPBC19G7.17 is a protein found in Schizosaccharomyces pombe (fission yeast), specifically in strain 972 / ATCC 24843. The protein is identified with UniProt Number O42965 . The antibody against this protein is commercially available as a polyclonal antibody raised in rabbits, designed specifically for fission yeast research applications .

The antibody has been validated primarily for:

• Enzyme-linked immunosorbent assay (ELISA)

• Western Blotting (WB)

Methodology for application selection should include consideration of protein conformation needs. For detecting native protein conformations, consider ELISA applications, while denatured protein detection typically employs Western Blotting. When selecting an application, researchers should consider experimental objectives and required sensitivity thresholds.

How should SPBC19G7.17 Antibody be stored and handled for optimal performance?

SPBC19G7.17 Antibody should be stored at -20°C or -80°C upon receipt to maintain optimal activity . Researchers should:

• Avoid repeated freeze-thaw cycles which can compromise antibody functionality

• Store in appropriate buffer conditions (typically containing 50% Glycerol, 0.01M PBS, pH 7.4, with 0.03% Proclin 300 as preservative)

• Aliquot the antibody upon first thaw to minimize freeze-thaw damage

• Maintain cold chain during all handling procedures

• Return to appropriate storage temperature immediately after use

For long-term projects, creating multiple small aliquots is strongly recommended to preserve antibody activity throughout the research timeline.

What controls are essential when using SPBC19G7.17 Antibody in experimental protocols?

Proper experimental controls are critical for generating reproducible, publishable data with SPBC19G7.17 Antibody. Based on current antibody validation standards, the following controls should be implemented :

Essential controls:

• Positive control: S. pombe strain 972 / ATCC 24843 lysate expressing SPBC19G7.17

• Negative control: Either:

  • Lysate from SPBC19G7.17 knockout strain (genetic strategy validation)

  • Pre-immune serum (included with antibody)

• Loading controls: For Western Blotting, include appropriate housekeeping protein controls

• Secondary antibody-only control: To detect non-specific binding

• Isotype control: IgG control matching the SPBC19G7.17 antibody's host species

What is the recommended protocol for Western Blotting using SPBC19G7.17 Antibody?

The optimal Western Blotting protocol for SPBC19G7.17 Antibody requires careful standardization:

Sample preparation:

• Harvest S. pombe cells in logarithmic growth phase

• Lyse cells in appropriate buffer (typically containing protease inhibitors)

• Clarify lysate by centrifugation (14,000 × g, 10 min, 4°C)

• Quantify protein concentration (Bradford or BCA assay)

Electrophoresis and transfer:

• Load 20-50 μg total protein per lane

• Separate proteins using SDS-PAGE (10-12% gel recommended)

• Transfer to PVDF or nitrocellulose membrane

Antibody incubation:

• Block membrane (5% non-fat milk or BSA in TBST, 1 hour at room temperature)

• Incubate with SPBC19G7.17 Antibody at 1:1000-1:2000 dilution (optimize based on lot)

• Incubate overnight at 4°C with gentle agitation

• Wash 3× with TBST (10 minutes each)

• Incubate with HRP-conjugated secondary antibody (1:5000-1:10000)

• Wash 3× with TBST (10 minutes each)

• Develop using ECL substrate and appropriate detection method

For quantitative analysis, researchers should establish a standard curve using recombinant SPBC19G7.17 protein to verify signal linearity within the working concentration range .

How do I validate the specificity of SPBC19G7.17 Antibody for my research?

Antibody validation is essential for ensuring experimental reliability. For SPBC19G7.17 Antibody, implement these validation strategies based on the "five pillars" approach :

• Genetic strategy: Compare antibody detection in wild-type S. pombe vs. SPBC19G7.17 knockout strains. Any signal in knockout lines represents non-specific binding .

• Orthogonal strategy: Compare antibody-based detection with a non-antibody method, such as mass spectrometry or RNA-seq data for SPBC19G7.17 expression .

• Independent antibody strategy: If available, compare results with another antibody targeting a different epitope of SPBC19G7.17 .

• Expression modulation strategy: Test antibody detection after experimentally increasing SPBC19G7.17 expression (e.g., using an inducible promoter system) .

• Immunoprecipitation-MS strategy: Perform immunoprecipitation followed by mass spectrometry to confirm captured proteins .

Documentation of these validation studies should be maintained for publication purposes. At minimum, researchers should employ at least two different validation strategies to ensure confidence in antibody specificity .

How do I troubleshoot weak or no signal when using SPBC19G7.17 Antibody?

When encountering signal issues with SPBC19G7.17 Antibody, systematically address these potential causes:

Sample preparation issues:

• Verify protein extraction efficiency from S. pombe

• Confirm protein quantification accuracy

• Ensure sample has not degraded (add fresh protease inhibitors)

Procedural optimizations:

• Antibody concentration: Test serial dilutions (1:500 to 1:5000)

• Incubation conditions: Extend primary antibody incubation to 24-48 hours at 4°C

• Blocking optimization: Test alternative blocking agents (BSA vs. milk)

• Signal enhancement: Use high-sensitivity ECL substrate or signal amplification systems

• Protein loading: Increase total protein loaded (up to 80 μg)

Technical considerations:

• For S. pombe proteins, denaturation conditions may require optimization

• Test different lysis buffers that may better preserve the epitope

• Consider non-reducing conditions if disulfide bonds affect epitope structure

Expression verification:
Before troubleshooting further, verify SPBC19G7.17 expression in your sample using RT-PCR or RNA-seq data to confirm the protein should be present .

Can SPBC19G7.17 Antibody detect post-translational modifications of the target protein?

Detection of post-translational modifications (PTMs) of SPBC19G7.17 requires careful experimental design and controls:

Methodological approach:

• Modification-specific detection: The standard SPBC19G7.17 Antibody recognizes the protein regardless of modification state. For PTM-specific detection, modification-specific antibodies would be required.

• Indirect PTM analysis: Run parallel Western blots with:

  • Standard conditions

  • Phosphatase-treated samples (for phosphorylation)

  • Deglycosylation enzyme-treated samples (for glycosylation)

  • Compare migration patterns for band shifts indicating modifications

• Two-dimensional gel electrophoresis: Separate SPBC19G7.17 by isoelectric point and molecular weight to identify modified forms before immunodetection.

Verification strategies:

• Use mass spectrometry to confirm specific modifications at particular residues

• Employ site-directed mutagenesis of predicted modification sites to validate functional significance

• Use inhibitors of specific modification pathways to confirm dynamics

If PTM-specific analysis is critical to your research, consider generating custom antibodies against the specific modified epitopes of SPBC19G7.17 .

What considerations should be made when using SPBC19G7.17 Antibody for protein localization studies?

For subcellular localization studies of SPBC19G7.17 in S. pombe, consider these methodological approaches:

Immunofluorescence protocol optimization:

• Fixation method: Test both formaldehyde (4%) and methanol fixation as epitope accessibility may differ

• Cell wall digestion: Optimize enzymatic digestion to improve antibody penetration while preserving cellular architecture

• Antibody concentration: Typically 5-10× higher concentration than for Western Blotting

• Permeabilization: Test different detergents (Triton X-100, saponin) for optimal balance between antibody access and structural preservation

Validation approaches:

• GFP-fusion comparison: Compare antibody staining pattern with GFP-tagged SPBC19G7.17 expression

• Subcellular fractionation: Confirm localization using biochemical fractionation followed by Western Blotting

• Co-localization: Use established markers for cellular compartments to confirm localization

Specific considerations for SPBC19G7.17:
Based on related nucleoporin studies in S. pombe, if SPBC19G7.17 is associated with the nuclear envelope, examine colocalization with known nuclear pore complex components like Cut11-mCherry, which can serve as an NPC marker .

For quantitative analysis of subcellular distribution, consider fluorescence intensity measurements across defined cellular regions .

How can I assess cross-reactivity concerns with SPBC19G7.17 Antibody in comparative studies with other yeast species?

When extending SPBC19G7.17 Antibody use to comparative studies across yeast species, systematic evaluation of cross-reactivity is essential:

Cross-reactivity assessment protocol:

• Sequence homology analysis: Perform bioinformatic analysis of the immunogen sequence against potential homologs in target species

• Western Blot screening: Test antibody against lysates from:

  • Schizosaccharomyces pombe (positive control)

  • Saccharomyces cerevisiae

  • Other yeast species of interest

• Epitope conservation verification: If the antibody recognizes proteins in multiple species, confirm identity through mass spectrometry

Decision matrix for cross-reactivity data:

When publishing comparative studies, explicitly document cross-reactivity testing and include appropriate controls for each species .

What are the quantitative approaches for assessing SPBC19G7.17 protein levels in stress response studies?

For quantitative analysis of SPBC19G7.17 expression during stress responses in S. pombe (such as those described in ), implement these methodological approaches:

Quantitative Western Blotting protocol:

• Standard curve generation: Create a serial dilution of recombinant SPBC19G7.17 protein

• Technical standardization:

  • Use automated sample loading systems where possible

  • Include technical replicates (minimum triplicate)

  • Process all experimental conditions in parallel on the same blot

• Normalization strategy:

  • Use multiple housekeeping proteins as loading controls

  • Verify stability of reference proteins under your stress conditions

  • Apply total protein normalization methods (stain-free gels or membrane staining)

Stress response experimental design:

• Apply standardized stress conditions (hydrogen peroxide, cadmium, heat shock, etc.) as described in

• Include time-course analysis to capture expression dynamics

• Compare expression patterns with transcriptional data for comprehensive analysis

Data analysis approach:

• Use image analysis software for densitometry with defined background subtraction

• Apply appropriate statistical tests for time-course or treatment comparisons

• Consider expression ratios rather than absolute values for more reliable comparisons

This quantitative approach enables reliable comparison of protein expression levels across experimental conditions, essential for understanding stress-response mechanisms in S. pombe .

How do I integrate SPBC19G7.17 Antibody data with other 'omic' approaches in systems biology studies?

For comprehensive systems biology research, SPBC19G7.17 Antibody data can be integrated with other 'omic' datasets through these methodological approaches:

Multi-omic integration strategy:

• Proteogenomic correlation: Compare SPBC19G7.17 protein levels (antibody-based detection) with corresponding gene expression (RNA-seq data)

• Temporal alignment: Synchronize sampling time points across different 'omic' platforms

• Statistical integration: Apply multivariate statistical methods to correlate protein, transcript, and phenotypic data

Data normalization considerations:

• Standardize quantification methods across experiments

• Apply appropriate transformations for each data type

• Include shared reference standards across experimental platforms

Validation approaches:

• Confirm key findings using orthogonal methods

• Implement targeted validation experiments for critical pathways

• Use genetic perturbation studies to test predicted regulatory relationships

Specific recommendations for SPBC19G7.17 studies:
If studying SPBC19G7.17 in nuclear transport or cell cycle contexts, correlate antibody-based protein measurements with:

• Transcriptional dynamics using time-course RNA-seq

• Protein interaction networks via immunoprecipitation-mass spectrometry

• Functional phenotypes through genetic manipulation and microscopy

This integrated approach provides a comprehensive understanding of SPBC19G7.17 function within the broader cellular context, enabling systems-level insights into its biological roles .