SPBC31F10.16 Antibody

What is SPBC31F10.16 and why is it studied in fission yeast?

SPBC31F10.16 is a protein-coding gene in Schizosaccharomyces pombe that appears in genome-wide studies investigating various cellular processes. Fission yeast serves as an excellent model organism due to its relative simplicity, well-annotated genome containing approximately 5,134 protein-coding genes (of which 70.6% are conserved in metazoa), and genetic tractability under controlled conditions .

SPBC31F10.16 has emerged in screens related to FK506 sensitivity, suggesting potential involvement in stress response pathways or calcineurin signaling . This gene may also be connected to heterochromatin assembly based on interactions with chromatin-remodeling factors . The systematic characterization of proteins like SPBC31F10.16 contributes to our understanding of fundamental eukaryotic processes that may be conserved in higher organisms.

What are the key characteristics of the commercially available SPBC31F10.16 Antibody?

The commercially available SPBC31F10.16 Antibody is a polyclonal antibody raised in rabbits against recombinant SPBC31F10.16 protein from Schizosaccharomyces pombe (strain 972/ATCC 24843). Its key characteristics include:

This antibody is specifically designed for research applications targeting the native SPBC31F10.16 protein in fission yeast .

How should I validate the specificity of SPBC31F10.16 Antibody for my research?

To ensure reliable results, follow a systematic approach to validate SPBC31F10.16 Antibody specificity using the "five pillars" framework of antibody validation :

• Genetic Strategy (Gold Standard):

  • Compare antibody reactivity between wild-type S. pombe and SPBC31F10.16 deletion strains

  • Expected outcome: Signal present in wild-type, absent in knockout

  • Applications: Western blot, immunofluorescence

• Orthogonal Strategy:

  • Correlate antibody detection with mRNA expression levels via RT-PCR

  • Calculate correlation coefficient between protein detection and transcript abundance

• Independent Antibody Strategy:

  • If available, compare results using different antibodies targeting SPBC31F10.16

  • Analyze concordance in detection patterns and subcellular localization

• Recombinant Expression Strategy:

  • Overexpress SPBC31F10.16 in wild-type cells or heterologous system

  • Verify increased signal proportional to expression level

• Immunocapture-MS Strategy:

  • Perform immunoprecipitation followed by mass spectrometry

  • Confirm SPBC31F10.16 as the predominant captured protein

For Western blot validation, include peptide competition controls, molecular weight verification, and appropriate positive and negative controls to demonstrate specificity . Document all validation experiments thoroughly for publication and reproducibility .

What controls are essential when using SPBC31F10.16 Antibody in experimental settings?

Implementing appropriate controls is crucial for generating reliable and interpretable data with SPBC31F10.16 Antibody :

Essential Positive and Negative Controls:

• Positive Controls:

  • Wild-type S. pombe lysate expressing SPBC31F10.16

  • Purified recombinant SPBC31F10.16 protein (if available)

  • Cells with overexpressed SPBC31F10.16 (if applicable)

• Negative Controls:

  • SPBC31F10.16 knockout/deletion strain lysate

  • Secondary antibody-only control (omit primary antibody)

  • Non-specific IgG from same species (rabbit) at equivalent concentration

Application-Specific Controls:

For each experiment, create a control matrix documenting expected versus observed results to validate antibody performance in your specific experimental context. Without these essential controls, antibody-generated data cannot be properly interpreted or considered reliable for publication .

How can I use SPBC31F10.16 Antibody to investigate protein interactions in fission yeast?

To investigate SPBC31F10.16 protein interactions, employ a systematic co-immunoprecipitation (Co-IP) approach with comprehensive controls:

Optimized Co-IP Protocol:

• Sample Preparation:

  • Harvest 50-100 ml of S. pombe culture (OD600 = 0.5-1.0)

  • Lyse cells using glass beads in buffer containing:

    • 50 mM HEPES pH 7.5, 150 mM NaCl, 1 mM EDTA

    • 0.1-1% non-ionic detergent (NP-40 or Triton X-100)

    • 10% glycerol and protease inhibitor cocktail

  • Clear lysate by centrifugation (13,000 × g, 15 min, 4°C)

• Immunoprecipitation:

  • Pre-clear lysate with Protein A/G beads

  • Incubate with 2-5 μg SPBC31F10.16 Antibody overnight at 4°C

  • Add pre-washed Protein A/G beads, incubate 2-3 hours at 4°C

  • Wash beads 4-5 times with washing buffer

  • Elute bound proteins by boiling in SDS sample buffer

• Analysis:

  • SDS-PAGE followed by Western blotting for suspected interaction partners

  • Mass spectrometry for unbiased identification of the entire interactome

This approach has successfully identified protein interactions in fission yeast, as demonstrated in studies examining complexes like the Clr6 HDAC complex . For transient interactions, consider using chemical crosslinking before lysis.

For proper data interpretation, include parallel control IPs (non-specific IgG and beads-only) and input samples. Validate key interactions by reverse Co-IP or orthogonal techniques like yeast two-hybrid or BioID proximity labeling .

How does SPBC31F10.16 potentially function in heterochromatin assembly pathways?

Based on research examining fission yeast heterochromatin, SPBC31F10.16 may be involved in chromatin organization pathways. While the specific function requires further characterization, several methodological approaches can elucidate its role:

• Chromatin Immunoprecipitation (ChIP):

  • Use SPBC31F10.16 Antibody for ChIP-seq to map genomic binding sites

  • Focus analysis on known heterochromatic regions (centromeres, telomeres, mating-type locus)

  • Compare binding profiles between wild-type and mutant strains

• Genetic Interaction Analysis:

  • Create double mutants with known heterochromatin factors (e.g., clr4Δ, swi6Δ)

  • Analyze synthetic phenotypes (growth defects, silencing defects)

  • Perform genome-wide genetic interaction screening

• Histone Modification Analysis:

  • Examine changes in heterochromatin-associated histone modifications (H3K9me2/3)

  • Compare modification profiles in wild-type versus SPBC31F10.16Δ cells

  • Correlate with gene silencing effects at heterochromatic regions

Research on related factors suggests possible connections to histone deacetylase complexes, particularly Clr6 HDAC complexes that are important for heterochromatin silencing . The interaction of Rbm10 with components of the Clr6 complex (including Alp13) indicates that SPBC31F10.16 may function within similar regulatory networks affecting chromatin structure .

What documentation should I include when publishing results using SPBC31F10.16 Antibody?

Comprehensive documentation is essential for experimental transparency and reproducibility. When publishing results with SPBC31F10.16 Antibody, include the following information :

Antibody Identification Table:

Validation Documentation:

• Include representative images from validation experiments:

  • Wild-type versus knockout comparisons

  • Peptide competition assays

  • Additional specificity controls

• Provide complete experimental methods:

  • Detailed protocols for each application

  • Buffer compositions with exact pH values

  • Incubation conditions (time, temperature)

  • Detection methods and parameters

• Include all controls used:

  • Positive and negative controls

  • Loading/normalization controls

  • Secondary antibody-only controls

For supplementary materials, provide uncropped versions of all blots including molecular weight markers, full immunofluorescence panels with controls, and raw quantification data . This comprehensive documentation enables other researchers to accurately evaluate and reproduce your findings.

How can I ensure experiment-to-experiment reproducibility when using SPBC31F10.16 Antibody?

To maximize reproducibility across experiments, implement these systematic approaches:

1. Standardization Practices:

• Aliquot antibody upon receipt to minimize freeze-thaw cycles

• Use consistent sample preparation methods for all experiments

• Standardize and document protein quantification protocols

• Prepare master mixes of common reagents when possible

2. Quantitative Quality Control:

• Include a reference sample in each experiment for normalization

• Calculate intra-assay and inter-assay coefficients of variation

• Establish acceptance criteria for signal-to-noise ratios

• Implement statistical process control with reference samples

3. Documentation and Tracking:

4. Addressing Common Challenges:

• Lot-to-Lot Variation: Characterize each new lot against reference samples

• Environmental Variables: Control laboratory temperature and humidity

• Operator Variation: Implement standardized training protocols

• Long-term Studies: Create a reference standard that can be stored long-term

For polyclonal antibodies like SPBC31F10.16 Antibody, lot-to-lot variation can be particularly significant . When changing antibody lots, perform side-by-side comparisons using identical samples and protocols to quantify any differences in specificity, sensitivity, or background. Document and compensate for these variations in your experimental designs and data analysis .

By systematically implementing these approaches, you can significantly enhance the reproducibility of experiments using SPBC31F10.16 Antibody and contribute to more robust research findings.