The YLR466C locus in S. cerevisiae encodes two variants:
YLR466C-A: Targeted by the antibody in question.
YLR466C-B: A recombinant protein (MBS7093918) produced in E. coli or yeast, with >90% purity .
| Protein Variant | Description | Source |
|---|---|---|
| YLR466C-A | Antibody target; function remains uncharacterized . | Cusabio |
| YLR466C-B | Recombinant protein; used in biochemical assays . | MyBiosource |
While both variants share the YLR466C locus, their functional roles and epitopes differ, suggesting distinct applications in yeast biology research .
The YLR466C-A Antibody is likely employed in:
Protein localization studies: To track YLR466C-A expression in yeast organelles (e.g., mitochondria, nucleus).
Western blotting: For detecting protein abundance under stress conditions or during fermentation.
Interactome analysis: To identify protein-protein interactions involving YLR466C-A .
No specific studies using this antibody were found in the provided sources, though similar antibodies (e.g., YLR466C-B) are used in functional genomics .
The YLR466C-A Antibody is cataloged in the Cusabio Antibody Database (entry 226) as part of a broader collection of yeast-specific antibodies . While not listed in the PLAbDab (Patent and Literature Antibody Database), researchers can query this resource for structurally similar antibodies targeting yeast proteins .
STRING: 4932.YOR396C-A
YLR466C-A refers to a putative UPF0479 protein found in Saccharomyces cerevisiae (strain 204508/S288c), commonly known as baker's yeast. This protein represents an important research target in yeast biology studies. The antibody against YLR466C-A enables visualization and quantification of this protein in various experimental contexts, facilitating investigation of yeast cellular processes and protein functions. Studying YLR466C-A contributes to our fundamental understanding of yeast biology, which serves as a model organism for eukaryotic cell processes. Methodologically, this research provides insights into conserved cellular mechanisms that may have implications for other eukaryotic systems .
The YLR466C-A antibody has been validated for specific research applications including ELISA (Enzyme-Linked Immunosorbent Assay) and Western Blot analysis. These applications enable researchers to detect and quantify the target protein in experimental samples. For Western Blot applications, the antibody allows identification of the specific protein band at the expected molecular weight, confirming presence and relative abundance of YLR466C-A in yeast samples. For ELISA applications, the antibody facilitates quantitative analysis of protein expression levels across different experimental conditions .
While specific storage protocols for YLR466C-A antibody are not directly provided in the search results, research-grade antibodies generally follow established preservation guidelines. Based on standard antibody storage protocols (similar to those described for other research antibodies), researchers should store antibodies at -20°C to -70°C for long-term preservation. After reconstitution, antibodies typically maintain activity for approximately 1 month at 2-8°C under sterile conditions or 6 months at -20°C to -70°C. To preserve antibody function, researchers should avoid repeated freeze-thaw cycles by aliquoting the reconstituted antibody before freezing .
Researchers should implement a multi-step validation approach to confirm YLR466C-A antibody specificity. This methodological workflow should include:
Positive and negative control samples: Use wild-type yeast strains expressing YLR466C-A alongside knockout strains lacking the gene.
Western blot analysis: Confirm single band detection at the expected molecular weight.
Peptide competition assay: Pre-incubate the antibody with purified YLR466C-A protein or peptide before application to confirm signal suppression.
Cross-reactivity testing: Test against related yeast proteins to ensure specificity.
Immunoprecipitation followed by mass spectrometry: Verify protein identity through peptide sequencing.
This comprehensive validation is essential for ensuring experimental rigor and reproducibility in yeast molecular biology research .
For optimal detection of YLR466C-A in yeast samples, researchers should employ a methodological approach that preserves protein integrity while maximizing extraction efficiency. The recommended sample preparation protocol includes:
Cell disruption: Use glass bead lysis in buffer containing protease inhibitors to prevent protein degradation.
Extraction buffer optimization: Employ buffers containing appropriate detergents (0.1-1% Triton X-100 or NP-40) to solubilize membrane-associated proteins.
Protein denaturation: For Western blot applications, use reducing conditions with sample buffer containing SDS and β-mercaptoethanol.
Centrifugation parameters: Clear lysates at 12,000-15,000 × g for 10-15 minutes to remove cellular debris.
Protein quantification: Normalize samples using Bradford or BCA assay before immunological detection.
This methodological approach ensures consistent and comparable results across experiments studying YLR466C-A expression in yeast models .
The optimal working conditions for YLR466C-A antibody applications should be determined through careful titration. Based on standard research antibody protocols, the following methodological recommendations apply:
| Application | Recommended Dilution Range | Detection System | Incubation Conditions |
|---|---|---|---|
| Western Blot | 1:500 - 1:2000 | HRP-conjugated secondary antibody | 1-2 hours at RT or overnight at 4°C |
| ELISA | 1:1000 - 1:5000 | TMB or ABTS substrate | 1-2 hours at RT |
| Immunoprecipitation | 2-5 μg per 500 μg lysate | Protein A/G beads | Overnight at 4°C with rotation |
| Immunofluorescence | 1:100 - 1:500 | Fluorophore-conjugated secondary | Overnight at 4°C |
Researchers should optimize these parameters through preliminary experiments to determine the ideal conditions for their specific experimental system and sample type .
To distinguish between specific and non-specific binding when using YLR466C-A antibody, researchers should implement the following methodological controls and validation steps:
Knockout/knockdown controls: Compare signal between wild-type samples and those where YLR466C-A expression has been eliminated or reduced.
Blocking optimization: Test different blocking agents (5% BSA, 5% non-fat milk, commercial blocking buffers) to minimize background.
Secondary antibody-only control: Incubate samples with secondary antibody alone to identify non-specific secondary binding.
Pre-absorption control: Pre-incubate antibody with excess target protein/peptide to confirm signal reduction.
Signal-to-noise ratio analysis: Quantitatively assess specific signal versus background across different experimental conditions.
This systematic approach enables researchers to confidently interpret YLR466C-A antibody results and distinguish authentic signals from experimental artifacts .
Researchers frequently encounter several methodological challenges when working with YLR466C-A in yeast samples:
Low expression levels: YLR466C-A may be expressed at low abundance, requiring signal amplification strategies or increased sample loading.
Cross-reactivity with related proteins: The UPF0479 protein family may contain structurally similar members leading to potential cross-reactivity.
Post-translational modifications: These can affect epitope recognition, requiring modification-specific antibodies for comprehensive detection.
Sample preparation variability: Inconsistent lysis efficiency in yeast cells due to their robust cell walls can affect protein extraction.
Growth phase-dependent expression: YLR466C-A expression may vary with yeast growth phase, requiring standardized culture conditions.
To address these challenges, researchers should optimize extraction protocols specifically for yeast cells, implement appropriate controls, and validate results using complementary detection methods .
To maintain experimental consistency and reproducibility when using YLR466C-A antibodies from different production lots, researchers should implement the following quality control protocol:
Standard sample testing: Test each new antibody lot against a consistent positive control sample (e.g., wild-type yeast lysate with known YLR466C-A expression).
Titration curve comparison: Perform parallel dilution series with old and new antibody lots to compare detection sensitivity and signal linearity.
Epitope mapping verification: Confirm that new lots recognize the same protein region through peptide array or competitive binding assays.
Signal intensity normalization: Establish a reference standard for quantitative normalization between experiments using different lots.
Documentation system: Maintain detailed records of lot numbers, validation results, and optimal working conditions for each antibody batch.
This systematic approach allows researchers to adjust experimental parameters appropriately when transitioning between antibody lots, maintaining data consistency and experimental rigor .
Advanced machine learning (ML) methodologies can significantly enhance YLR466C-A antibody-antigen binding prediction through multi-layered computational approaches. Recent research demonstrates that integrating library-on-library screening data with ML algorithms can improve prediction accuracy for antibody-antigen interactions, including those involving yeast proteins like YLR466C-A. The methodological framework involves:
Training data generation: Utilize experimental binding data from library-on-library screening approaches where multiple YLR466C-A variants are tested against various antibody candidates.
Feature extraction: Derive protein sequence features, structural characteristics, and physicochemical properties relevant to binding interactions.
Model development: Implement ensemble ML algorithms that capture complex binding relationships beyond simple linear correlations.
Active learning implementation: Apply iterative active learning strategies to reduce the amount of experimental data needed for accurate predictions by up to 35%.
Out-of-distribution validation: Test model performance on novel YLR466C-A variants not represented in training data to ensure generalizability.
This computational approach accelerates antibody development and validation while reducing experimental costs and resource requirements .
Different detection methodologies offer unique advantages for investigating YLR466C-A in complex yeast systems. Researchers should select appropriate techniques based on their specific research questions:
| Detection Method | Resolution Capability | Quantification Potential | Technical Complexity | Key Advantage for YLR466C-A Research |
|---|---|---|---|---|
| Western Blot | Protein size resolution | Semi-quantitative | Moderate | Specific protein identification with size confirmation |
| Mass Spectrometry | Peptide-level resolution | Highly quantitative | High | Identification of post-translational modifications |
| Immunofluorescence | Subcellular localization | Moderate quantification | Moderate | Visualization of protein localization in intact cells |
| Proximity Ligation Assay | Protein-protein interactions | Moderate quantification | High | Detection of YLR466C-A interaction partners |
| ELISA | No size resolution | Highly quantitative | Low | High-throughput quantification across many samples |
Each method provides complementary information, and combining multiple approaches yields comprehensive understanding of YLR466C-A function in yeast biological systems .
Epitope accessibility represents a critical factor affecting YLR466C-A antibody performance across different experimental applications. This methodological consideration impacts experimental design in several ways:
Native versus denatured conditions: Under native conditions (e.g., immunoprecipitation), only surface-exposed epitopes are accessible, while denatured conditions (e.g., Western blot) expose internal epitopes.
Fixation effects: Different fixation methods (paraformaldehyde, methanol, acetone) differentially preserve epitope structures, potentially masking or exposing the YLR466C-A antibody binding site.
Complex formation impact: Protein-protein interactions may sequester the epitope in certain cellular contexts, leading to variable detection efficiency in different cellular compartments or functional states.
Post-translational modifications: Phosphorylation, glycosylation, or other modifications near the epitope can sterically hinder antibody binding.
Conformational states: Protein folding variations in different experimental conditions can alter epitope presentation and antibody recognition.
Researchers should optimize protocols based on these considerations, potentially using multiple antibodies targeting different epitopes to ensure comprehensive YLR466C-A detection across experimental conditions .
To effectively monitor YLR466C-A expression dynamics throughout the yeast cell cycle, researchers can implement a multi-faceted methodological approach:
Synchronized culture analysis: Utilize established synchronization methods (α-factor arrest, hydroxyurea block, or centrifugal elutriation) to obtain yeast populations at defined cell cycle stages.
Time-course Western blot analysis: Sample synchronized cultures at regular intervals and perform quantitative Western blot analysis using YLR466C-A antibody, normalizing to loading controls.
Live-cell fluorescent tagging: Generate YLR466C-A-GFP fusion constructs under native promoter control for real-time visualization in living cells.
Flow cytometry correlation: Combine DNA content analysis with YLR466C-A immunostaining to correlate expression with specific cell cycle phases.
Single-cell microscopy: Implement time-lapse microscopy with fluorescently labeled YLR466C-A to track expression changes in individual cells through division cycles.
This integrated approach provides comprehensive temporal resolution of YLR466C-A expression patterns, revealing potential cell cycle-dependent regulation mechanisms in yeast models .
When faced with inconsistent YLR466C-A antibody results across different experimental systems, researchers should implement a systematic analytical approach:
Platform-specific limitations assessment: Evaluate inherent limitations of each experimental method (e.g., Western blot provides size information but limited quantification; ELISA offers quantification but no size confirmation).
Antibody epitope consideration: Determine if different epitopes are targeted in each platform, potentially explaining differential detection.
Sample preparation comparison: Assess how different extraction and preparation methods may affect protein conformation or epitope accessibility.
Validation through orthogonal methods: Confirm results using technique-independent approaches such as mass spectrometry or RNA expression analysis.
Biological context evaluation: Consider whether differences reflect genuine biological variability rather than technical artifacts.
This methodical approach transforms apparent contradictions into deeper understanding of the target protein's behavior across experimental contexts .
When reporting YLR466C-A antibody validation in academic publications, researchers should adhere to these methodological best practices:
Complete antibody documentation: Provide full antibody details including source, catalog number, clone ID, lot number, and RRID (Research Resource Identifier).
Validation data presentation: Include comprehensive validation evidence such as Western blot images showing full membranes, controls (positive, negative, secondary-only), and molecular weight markers.
Experimental condition transparency: Detail all critical parameters including antibody dilutions, incubation conditions, blocking agents, and detection methods.
Data visualization optimization: Present quantitative data in tables with clear statistical analysis rather than simple lists, enhancing interpretability.
Raw data availability: Provide access to unprocessed images and quantification data through supplementary materials or data repositories.
This comprehensive reporting framework enhances reproducibility and allows appropriate evaluation of antibody-based experimental results by the scientific community .
To achieve comprehensive systems biology understanding of YLR466C-A function, researchers should integrate antibody-based protein detection with complementary omics methodologies:
| Omics Approach | Integration Method with YLR466C-A Antibody Data | Biological Insight Gained |
|---|---|---|
| Transcriptomics | Correlate protein levels with mRNA expression | Post-transcriptional regulation mechanisms |
| Proteomics | Compare antibody-based detection with MS-identified peptides | Protein modification and processing events |
| Metabolomics | Associate YLR466C-A levels with metabolite changes | Functional impact on cellular metabolism |
| Interactomics | Combine co-IP using YLR466C-A antibody with protein interaction maps | Protein complex formation and network positioning |
| Phenomics | Link YLR466C-A expression with phenotypic outcomes | Functional significance in cellular processes |
This integrated multi-omics strategy provides a holistic view of YLR466C-A's role within the complex cellular network of yeast, revealing both direct functions and system-wide influences .
The landscape of antibody-based research is rapidly evolving, with several emerging technologies poised to transform YLR466C-A investigations. Methodologically significant advances include:
Advanced active learning algorithms: Machine learning approaches that can reduce the experimental data needed for binding prediction by up to 35%, allowing more efficient antibody development and characterization.
Single-cell proteomics: Technologies enabling YLR466C-A quantification at single-cell resolution to reveal cell-to-cell variability in yeast populations.
Spatial proteomics: Methods combining antibody detection with spatial mapping to determine YLR466C-A localization patterns within subcellular compartments.
Microfluidic antibody screening: High-throughput platforms for rapid testing of antibody binding characteristics across numerous conditions simultaneously.
Computational epitope prediction: Advanced algorithms that better predict antibody-antigen interactions, reducing empirical testing requirements.
These technological advances will likely expand the research capabilities for YLR466C-A investigations, enabling more nuanced understanding of this yeast protein's functions and interactions .
To advance the reliability and reproducibility of YLR466C-A antibody research, scientists should actively contribute to establishing community standards through these methodological approaches:
Comprehensive validation reporting: Document and publish detailed validation protocols including positive and negative controls, specificity tests, and cross-reactivity assessments.
Antibody registration: Register validated antibodies with repositories like Antibodypedia or the Antibody Registry, providing detailed experimental validation data.
Interlaboratory validation studies: Participate in collaborative projects to assess YLR466C-A antibody performance across different research settings.
Method sharing platforms: Contribute optimized protocols to repositories like protocols.io for community access.
Open data practices: Share raw validation data and images through public repositories to enable independent evaluation.
This community-based approach establishes higher standards for YLR466C-A research, enhancing data reliability and experimental reproducibility across the field .