The search results include references to fission yeast genes (e.g., SPBPB10D8.04c, labeled as Ssu1, a malate permease involved in sulfite transport) . The ".02c" suffix in "SPBPB10D8.02c" suggests it is a hypothetical or uncharacterized gene adjacent to Ssu1. In fission yeast, such identifiers often denote:
SP: Schizosaccharomyces pombe
BPB10D8: Genomic locus
.02c: Specific open reading frame (ORF) designation and strand orientation.
While no studies directly targeting SPBPB10D8.02c were found, research on fission yeast antibodies or related proteins includes:
Pof1-GFP Antibody: Used to study ubiquitin-dependent proteolysis in fission yeast, revealing interactions with substrates like Zip1 (a transcription factor regulated by cadmium) .
Anti-GFP Antibody: Employed in immunoblotting to detect GFP-tagged proteins (e.g., Pof1 and Zip1) in fission yeast lysates .
If SPBPB10D8.02c encodes a protein, its antibody could be used to:
Investigate localization (e.g., membrane, cytoplasm).
Study interactions with neighboring genes (e.g., Ssu1).
Validate expression under stress conditions (e.g., nutrient deprivation, cadmium exposure).
No Direct Data: The absence of SPBPB10D8.02c-specific studies in the provided sources limits actionable insights.
Possible Typographical Error: If the intended target is SPBPB10D8.04c (Ssu1), detailed data on malate permease function and sulfite transport are available .
To study SPBPB10D8.02c, consider:
Generate Custom Antibodies: Use peptide antigens derived from the predicted ORF.
CRISPR Knockout Models: Assess phenotypic changes in fission yeast.
Transcriptomic Analysis: Compare expression profiles under stress conditions.
KEGG: spo:SPBPB10D8.02c
STRING: 4896.SPBPB10D8.02c.1
SPBPB10D8.02c encodes an arylsulfatase enzyme that appears to play a role in cellular metabolism. According to available data, this gene shows differential expression levels (7.3 fold change) under specific experimental conditions compared to controls . The significance of this protein lies in its potential involvement in stress response pathways, particularly as it relates to ubiquitin-mediated protein degradation processes. Understanding this protein's function requires specific antibodies for detection and characterization in various experimental systems. Researchers investigating sulfate metabolism, cellular stress responses, or protein degradation pathways would benefit from tools that allow specific detection of this protein. Methodologically, antibodies against SPBPB10D8.02c can be utilized in numerous research applications to elucidate its biological role, expression patterns, and potential interactions with other cellular components.
SPBPB10D8.02c belongs to the arylsulfatase family, a group of enzymes that hydrolyze sulfate esters from various substrates. When designing experiments targeting this specific arylsulfatase, researchers must consider its structural similarity to other family members to ensure antibody specificity. The protein appears in research contexts alongside other metabolic enzymes such as sulfite reductase (Ecm17) and ferric-chelate reductase (frp1+), suggesting potential functional relationships within sulfur metabolism pathways . From a methodological perspective, research approaches should include comparative analyses with other arylsulfatases to establish unique functional characteristics. When selecting antibodies, researchers should verify that the chosen antibody can distinguish between SPBPB10D8.02c and related proteins, which may require epitope mapping or competitive binding assays to confirm specificity.
Research data indicates that SPBPB10D8.02c expression is upregulated significantly (7.3-fold) under specific experimental conditions compared to control samples . This protein appears alongside other upregulated genes in response to cellular stressors, particularly in studies examining cadmium stress response pathways. Methodologically, researchers should consider using techniques like Western blotting or immunofluorescence with validated antibodies to confirm expression patterns across different experimental conditions. When designing experiments to further characterize SPBPB10D8.02c expression, researchers should include appropriate controls and consider time-course studies to capture dynamic changes in protein levels. Multi-omics approaches combining proteomics with transcriptomics data would provide more comprehensive insights into expression regulation under various experimental conditions.
When selecting an antibody against SPBPB10D8.02c, researchers should first thoroughly understand their target's characteristics, including expression level, subcellular localization, structure, and homology to related proteins . For SPBPB10D8.02c specifically, consideration of potential cross-reactivity with other arylsulfatases is crucial given structural similarities within this enzyme family. Methodologically, researchers should evaluate available antibodies based on validation data in their specific experimental system. This includes reviewing specificity data, examining the immunogen used to generate the antibody, and assessing whether the antibody has been validated in applications relevant to planned experiments. Additionally, researchers should consider whether they need to detect native protein, denatured protein, or specific post-translational modifications, as this will influence the choice between polyclonal and monoclonal antibodies. Consulting resources such as Uniprot and reviewing primary literature can provide valuable insights into target characteristics that should inform antibody selection .
Comprehensive validation of SPBPB10D8.02c antibodies is essential before experimental application. Methodologically, this should include multiple orthogonal approaches. First, researchers should perform Western blot analysis using positive controls (samples known to express SPBPB10D8.02c) and negative controls (samples with SPBPB10D8.02c knocked down or samples from organisms lacking the gene). The antibody should detect a band of the expected molecular weight, which should be verified against predicted protein size. Second, immunoprecipitation followed by mass spectrometry can confirm that the antibody is capturing the intended target. Third, immunofluorescence can verify expected subcellular localization patterns. For advanced validation, researchers might consider using CRISPR-Cas9 generated knockout models as negative controls. Each validation method should be documented with appropriate controls and quantifiable metrics. This multi-faceted approach ensures that experimental results obtained with the antibody are reliable and reproducible.
The choice between polyclonal and monoclonal antibodies for SPBPB10D8.02c detection depends on experimental requirements. Polyclonal antibodies, such as those listed in product catalogs (Anti Octreotide Pab, Anti E. coli OmpA Pab) , recognize multiple epitopes on the target protein, potentially offering higher sensitivity but with greater risk of cross-reactivity. These might be advantageous for initial characterization of SPBPB10D8.02c expression. Methodologically, polyclonal antibodies typically perform well in applications where the target protein may be partially denatured or where sensitivity is prioritized over absolute specificity. Monoclonal antibodies, by contrast, recognize a single epitope, offering high specificity but potentially lower sensitivity. Companies offer custom monoclonal antibody development services that could be employed for SPBPB10D8.02c-specific detection . Methodologically, monoclonal antibodies excel in applications requiring consistent lot-to-lot reproducibility and where distinguishing between closely related proteins is essential. For quantitative applications or longitudinal studies, monoclonal antibodies provide more consistent results due to their homogeneity.
Optimizing SPBPB10D8.02c antibodies for Western blotting requires systematic adjustment of multiple parameters. Methodologically, researchers should first determine the optimal antibody dilution through a titration series (typically starting from 1:500 to 1:5000). Blocking conditions should be optimized to reduce background while maintaining specific signal, with options including BSA, non-fat milk, or commercial blocking reagents. For SPBPB10D8.02c detection specifically, considerations should include membrane type (PVDF versus nitrocellulose), transfer conditions (wet versus semi-dry), and incubation times and temperatures. Since SPBPB10D8.02c appears to be involved in stress response pathways, researchers might need to optimize sample preparation to prevent protein degradation during extraction. Additionally, detection methods (chemiluminescence, fluorescence, or chromogenic) should be selected based on required sensitivity. A detailed optimization record should be maintained, documenting conditions tested and resulting signal-to-noise ratios. Finally, appropriate positive controls (such as recombinant SPBPB10D8.02c) and negative controls should be included in each experiment to validate specificity.
Immunoprecipitation of SPBPB10D8.02c requires careful protocol design to preserve protein-protein interactions while ensuring specific capture. Methodologically, researchers should begin with optimized lysis conditions that maintain protein solubility while preserving native interactions. Based on research involving similar proteins, a buffer containing 50 mM Tris-HCl (pH 7.5), 150 mM NaCl, 1% NP-40, and protease inhibitors would be a reasonable starting point . The immunoprecipitation protocol should include pre-clearing steps to reduce non-specific binding, followed by incubation with the validated SPBPB10D8.02c antibody. Research with related proteins suggests that 2-4 μg of antibody per 1 mg of total protein is typically effective. For SPBPB10D8.02c specifically, consideration should be given to potential post-translational modifications, as evidence from related research indicates phosphorylation may affect protein interactions . The protocol should include appropriate washing steps to remove non-specifically bound proteins while preserving specific interactions. Controls should include an isotype control antibody precipitation and, ideally, samples where SPBPB10D8.02c is absent or depleted. For detection of co-immunoprecipitated proteins, mass spectrometry or Western blotting with antibodies against suspected interaction partners can be employed.
For immunofluorescence applications with SPBPB10D8.02c antibodies, researchers should optimize protocols for cell fixation, permeabilization, and antibody incubation. Methodologically, comparison of different fixation methods (paraformaldehyde, methanol, or acetone) should be conducted to determine which best preserves the epitope recognized by the antibody while maintaining cellular morphology. For SPBPB10D8.02c, which is likely associated with cellular metabolic pathways, researchers should consider dual staining with markers for relevant subcellular compartments to precisely determine localization patterns. Permeabilization conditions should be optimized based on the predicted subcellular localization of SPBPB10D8.02c, with options including Triton X-100, saponin, or digitonin at various concentrations. Antibody dilutions typically range from 1:100 to 1:1000 for primary antibodies, but should be empirically determined for each application. To ensure specificity, controls should include samples with SPBPB10D8.02c knocked down or out, as well as secondary antibody-only controls to assess background fluorescence. Advanced imaging techniques, such as confocal microscopy or super-resolution microscopy, may be necessary to precisely resolve subcellular localization. Researchers should also document the specific acquisition parameters used to capture images to ensure reproducibility.
Research data suggests SPBPB10D8.02c may be regulated through the ubiquitin-proteasome pathway, specifically in connection with SCF (Skp, Cullin, F-box) ubiquitin ligase complexes . Studies examining the F-box protein Pof1 indicate it may regulate stress response genes, potentially including SPBPB10D8.02c. Methodologically, investigating this relationship requires sophisticated approaches combining antibody-based detection with genetic manipulation. Researchers could employ cycloheximide chase assays similar to those used for Zip1 stability studies to determine if SPBPB10D8.02c protein stability is dependent on functional Pof1. This would involve treating cells with cycloheximide to inhibit protein synthesis, then collecting samples at various time points to track protein degradation via Western blotting with SPBPB10D8.02c antibodies. Co-immunoprecipitation experiments using antibodies against SPBPB10D8.02c and components of the SCF complex could determine if direct interactions occur. For definitive evidence of ubiquitination, researchers could perform ubiquitination assays using tagged ubiquitin and SPBPB10D8.02c antibodies to detect ubiquitinated forms of the protein. These advanced approaches would provide mechanistic insights into how SPBPB10D8.02c is regulated within cellular pathways.
Research on related proteins suggests that post-translational modifications, particularly phosphorylation, may play important roles in regulating protein function and stability . Methodologically, studying these modifications on SPBPB10D8.02c requires specialized approaches. Researchers should first employ phospho-specific antibodies if available, or use general phosphorylation detection methods such as Pro-Q Diamond staining followed by Western blotting with SPBPB10D8.02c antibodies. Phosphorylation status can be confirmed through treatment with lambda phosphatase, similar to methods used for Zip1 , followed by Western blot analysis to observe band shift patterns. For comprehensive identification of modification sites, immunoprecipitation of SPBPB10D8.02c followed by mass spectrometry analysis is recommended. This approach would identify not only phosphorylation but also other potential modifications such as ubiquitination, acetylation, or glycosylation. Site-directed mutagenesis of identified modification sites would confirm their functional significance. For temporal dynamics of modifications, researchers could employ synchronized cell populations or stimulus-response experiments monitored across multiple time points. These sophisticated approaches would provide detailed insights into how post-translational modifications regulate SPBPB10D8.02c function.
Based on research data showing differential expression of SPBPB10D8.02c under stress conditions , methodological approaches to study its role in stress response should be multi-faceted. Researchers should establish dose-response and time-course experiments exposing cellular systems to relevant stressors, particularly cadmium, given its connection to related pathways . SPBPB10D8.02c antibodies would be used to track protein levels via Western blotting, while qRT-PCR would monitor transcriptional changes. To establish causality, CRISPR-Cas9 knockout or knockdown models of SPBPB10D8.02c could be generated and phenotypically characterized under normal and stress conditions. Rescue experiments reintroducing wild-type or mutant SPBPB10D8.02c would confirm specific functions. ChIP-seq experiments using transcription factor antibodies could identify regulators of SPBPB10D8.02c expression during stress. For systematic identification of interacting partners under stress conditions, proximity labeling approaches such as BioID or APEX coupled with SPBPB10D8.02c antibodies for validation would be valuable. These comprehensive approaches would establish SPBPB10D8.02c's specific roles within stress response networks.
Non-specific binding is a significant challenge when working with antibodies against SPBPB10D8.02c or any target. Common sources include cross-reactivity with structurally similar proteins (particularly other arylsulfatases), insufficient blocking, and high antibody concentrations. Methodologically, researchers should implement several strategies to mitigate these issues. First, increasing the stringency of washing steps by adjusting salt concentration (typically 150-500 mM NaCl) or adding mild detergents (0.05-0.1% Tween-20) can reduce non-specific interactions. Second, optimization of blocking conditions by testing different blocking agents (BSA, non-fat milk, commercial blockers) at various concentrations and incubation times can minimize background. Third, titrating antibody concentrations to determine the minimum concentration providing specific signal helps reduce non-specific binding. For SPBPB10D8.02c specifically, pre-absorption of the antibody with recombinant related proteins can improve specificity. Additionally, validation in systems where SPBPB10D8.02c is absent or depleted provides definitive negative controls. Researchers should document these optimization steps and include appropriate controls in each experiment to ensure reliable interpretation of results.
Discrepancies between protein and transcript levels for SPBPB10D8.02c may reflect biological regulation rather than technical artifacts. Methodologically, researchers should first verify both measurements independently. For RNA measurements, multiple primer sets and housekeeping genes should be used in qRT-PCR, while for protein detection, several validated antibodies targeting different epitopes should be employed if available. Time-course experiments can reveal temporal relationships between transcript and protein levels, as protein expression typically lags behind transcriptional changes. Post-transcriptional regulation should be investigated through assessments of mRNA stability using actinomycin D chase experiments, while post-translational regulation can be examined through cycloheximide chase assays to measure protein half-life . For comprehensive analysis, researchers could employ ribosome profiling to assess translation efficiency and polysome profiling to examine translational regulation. Targeted mass spectrometry using absolute quantification standards provides antibody-independent protein quantification for comparison. These complementary approaches help distinguish between technical issues with antibody detection and genuine biological regulation occurring between transcription and translation or affecting protein stability.
When interpreting SPBPB10D8.02c expression in relation to other metabolic enzymes, researchers should employ systematic comparative approaches. Available data shows that SPBPB10D8.02c (arylsulfatase) exists in experimental systems alongside other sulfur metabolism-related enzymes including sulfite reductase (Ecm17, fold change 1.3), cystathionine γ-synthase (fold change 5.8), and sulfide-quinone oxidoreductase (cad1+/hmt2+, fold change 2.2) . This suggests coordinated regulation within sulfur metabolism pathways. Methodologically, researchers should conduct correlation analyses between expression levels of these enzymes across various experimental conditions. Network analysis incorporating protein-protein interaction data, co-expression patterns, and pathway mapping can reveal functional relationships. Perturbation experiments where one pathway component is modulated followed by assessment of effects on SPBPB10D8.02c and other pathway members can establish causality in these relationships. When designing such experiments, appropriate normalization methods and statistical approaches must be employed to account for technical variation and establish significance of observed relationships. This integrated analysis provides a systems-level understanding of SPBPB10D8.02c's role within broader metabolic networks rather than viewing it in isolation.
Integration of antibody-based SPBPB10D8.02c detection with multi-omics data provides comprehensive insights into its biological context. Methodologically, researchers should first ensure comparable experimental conditions across platforms to enable meaningful integration. Antibody-based protein quantification using Western blotting or mass spectrometry-based proteomics can be combined with transcriptomics (RNA-seq or microarray) to examine correlations between protein and mRNA levels. Available data suggests SPBPB10D8.02c exists in networks with other metabolic enzymes , making pathway-level integration particularly valuable. Metabolomics focusing on sulfur-containing metabolites would provide functional insights given SPBPB10D8.02c's arylsulfatase activity. For data integration, researchers can employ computational approaches ranging from simple correlation analyses to sophisticated network inference algorithms or multi-omics factor analysis. Causality can be established through perturbation experiments where SPBPB10D8.02c is modulated and effects are measured across multiple omics layers. Visualization tools such as pathway maps with overlay capabilities help interpret complex integrated datasets. This systems biology approach provides mechanistic understanding of SPBPB10D8.02c's function beyond what can be achieved with antibody-based detection alone, revealing emergent properties not evident from single-omics approaches.