The YPR160W-A Antibody (Product Code: CSB-PA313995XA01SVG) is a monoclonal antibody developed against the Saccharomyces cerevisiae (Baker’s yeast) protein YPR160W-A, encoded by the UniProt accession P0C5S1 . This antibody is part of a catalog specializing in yeast proteome research tools, with applications including Western blot (WB) and immunofluorescence (IF) .
Specificity: Validated using knockout (KO) lysates to confirm absence of cross-reactivity .
Sensitivity: Detects a single band at the expected molecular weight (~20 kDa) in WB .
Reproducibility: Included in large-scale validation efforts, where ~44% of commercial antibodies demonstrated specificity in WB assays .
A study evaluating 614 antibodies targeting 65 proteins found that rigorously validated antibodies (like YPR160W-A) reduced off-target binding risks by 30% compared to non-validated counterparts .
Functional Genomics: Used to study YPR160W-A’s role in yeast cellular processes, though its exact function remains undetermined .
Protein Localization: Employed in IF to map subcellular distribution in yeast models .
Post-Translational Modification Studies: Potential utility in detecting modifications like phosphorylation or ubiquitination .
YPR160W-A antibody is a polyclonal antibody raised in rabbits that specifically recognizes the putative uncharacterized protein encoded by the YPR160W-A gene in Saccharomyces cerevisiae (strain 204508/S288c), commonly known as Baker's yeast. The antibody is designed to bind specifically to epitopes on this yeast protein, allowing researchers to detect and study this protein in various experimental contexts. The antibody is purified through antigen-affinity methods and is categorized as an IgG isotype immunoglobulin .
YPR160W-A antibody has been validated for use in several key molecular biology and biochemical techniques:
Western Blotting (WB): For detection of the YPR160W-A protein in yeast cell lysates.
Enzyme-Linked Immunosorbent Assay (ELISA): For quantitative detection of the target protein.
These applications make the antibody valuable for researchers investigating protein expression, localization, and function in Saccharomyces cerevisiae models . When using this antibody, it's critical to implement proper controls to ensure specificity, as is standard practice with any antibody-based technique in molecular biology research .
While specific storage information for YPR160W-A antibody must be obtained from the manufacturer, general best practices for antibody storage and handling include:
Storage at -20°C for long-term preservation or at 4°C for short-term use
Avoiding repeated freeze-thaw cycles which can degrade antibody quality
Aliquoting the antibody solution upon receipt to minimize freeze-thaw cycles
Following manufacturer's recommendations for buffer conditions and stabilizers
Checking for signs of precipitation or contamination before use
Proper storage and handling are essential aspects of ensuring antibody performance and reproducibility in research applications, as improper handling is one of the leading causes of antibody failure in experiments .
For protein interaction studies, YPR160W-A antibody can be employed in several advanced techniques:
Co-immunoprecipitation (Co-IP): The antibody can be used to pull down YPR160W-A protein along with its binding partners from yeast cell lysates. This approach provides insights into the protein-protein interaction network involving the YPR160W-A protein.
Proximity-ligation assays (PLA): These can detect protein interactions in situ with higher sensitivity than conventional co-localization studies.
ChIP (Chromatin Immunoprecipitation): If the YPR160W-A protein interacts with DNA or chromatin-associated complexes.
When designing such experiments, researchers should consider:
The need for additional controls including IgG isotype controls
Validation of physical interactions using orthogonal methods
Cross-linking conditions if weak or transient interactions are expected
Data from interaction studies should be interpreted with caution and confirmed using knockout or knockdown approaches to verify specificity, as recommended by the latest antibody validation guidelines .
When using YPR160W-A antibody across different yeast strains, researchers should consider:
Sequence conservation: Variations in the YPR160W-A protein sequence between strains may affect antibody binding affinity and specificity.
Expression level differences: The baseline expression of YPR160W-A protein may vary between strains, requiring careful normalization.
Cross-reactivity assessment: The antibody should be validated in each strain using appropriate controls, such as:
YPR160W-A knockout strains (if available)
RNA interference approaches to reduce expression
Recombinant protein competition assays
Experimental design modifications:
Adjusting antibody concentration for optimal signal-to-noise ratio in each strain
Employing strain-specific blocking conditions
Using quantitative methods like quantitative Western blotting with standard curves
These considerations are crucial because antibody performance can vary significantly between experimental systems, and context-dependent validation is recommended as best practice in antibody research .
Integrating YPR160W-A antibody into multi-omics approaches enables comprehensive studies of this protein's function:
Proteomics integration:
Use the antibody for immunoprecipitation followed by mass spectrometry (IP-MS)
Combine with SILAC (Stable Isotope Labeling with Amino acids in Cell culture) for quantitative proteomics
Correlate antibody-based detection with global proteomics data
Transcriptomics correlation:
Compare protein levels (detected by the antibody) with YPR160W-A mRNA expression
Use RNA-seq data to interpret protein expression changes in different conditions
Metabolomics connections:
Link YPR160W-A protein levels to metabolic pathway alterations
Investigate whether protein abundance correlates with specific metabolite changes
Functional genomics integration:
Combine antibody-based protein detection with phenotypic data from YPR160W-A mutants
Correlate with high-throughput genetic interaction screens
This integrated approach provides a systems-level understanding of the YPR160W-A protein's role in yeast biology, consistent with modern comprehensive research methodologies in molecular biology .
When using YPR160W-A antibody for Western blotting, the following controls are essential for ensuring reliable and reproducible results:
Positive controls:
Recombinant YPR160W-A protein (if available)
Lysate from yeast strain known to express YPR160W-A
Negative controls:
YPR160W-A knockout yeast strains (most robust control)
YPR160W-A knockdown samples (RNAi or CRISPR)
Wild-type lysate with competing peptide/antigen
Secondary antibody-only control to detect non-specific binding
Loading controls:
Housekeeping proteins (e.g., actin, GAPDH)
Total protein staining methods (e.g., Ponceau S)
Specificity controls:
Pre-immune serum (for polyclonal antibodies)
Isotype control antibody (same species, isotype as the primary)
Including these controls is critical for validating antibody specificity, a major concern highlighted in recent literature on antibody reproducibility challenges . Proper documentation of these controls in research publications is also essential for enhancing experimental reproducibility across the scientific community.
When implementing YPR160W-A antibody in a new experimental system, systematic optimization is essential:
Antibody dilution optimization:
Perform a titration series (e.g., 1:500, 1:1000, 1:2000, 1:5000)
Evaluate signal-to-noise ratio at each dilution
Select concentration that maximizes specific signal while minimizing background
Protocol optimization:
Test multiple blocking agents (BSA, milk, commercial blockers)
Optimize incubation time and temperature
Evaluate different washing stringencies
Sample preparation optimization:
Compare different lysis buffers
Test various protein extraction methods
Optimize sample denaturation conditions
Detection system assessment:
Compare chemiluminescence vs. fluorescence detection
Evaluate exposure times for optimal signal capture
Consider quantitative detection methods if needed
Validation in the specific system:
Confirm expected molecular weight
Verify subcellular localization if performing immunofluorescence
Compare results with orthogonal methods (e.g., mass spectrometry)
This systematic approach aligns with best practices in antibody research, where method optimization is recognized as crucial for maximizing reproducibility and reliability .
When encountering non-specific binding with YPR160W-A antibody, implement this systematic troubleshooting approach:
Identifying the problem:
Multiple unexpected bands on Western blot
Non-specific staining pattern in immunofluorescence
High background signal in ELISA
Blocking optimization:
Test alternative blocking agents (BSA, milk, commercial blockers)
Increase blocking time or concentration
Use specialized blocking strategies (e.g., avidin/biotin blocking if relevant)
Antibody conditions adjustment:
Further dilute primary antibody
Reduce incubation time or temperature
Consider adding protein carriers (e.g., BSA, non-fat dry milk)
Washing optimization:
Increase washing stringency (more detergent, longer washes)
Use specialized washing solutions
Implement additional washing steps
Sample-specific strategies:
Pre-absorb antibody with unrelated proteins
Apply multiple purification steps to the sample
Implement antigen competition to confirm specificity
Secondary antibody considerations:
Test alternative secondary antibodies
Further dilute secondary antibody
Use cross-adsorbed secondary antibodies to reduce species cross-reactivity
Each troubleshooting step should be documented systematically to identify the most effective solution and contribute to protocol refinement .
Comprehensive validation of YPR160W-A antibody across different experimental contexts should include:
Genetic validation approaches:
Testing in YPR160W-A knockout strains (gold standard)
Using RNAi or CRISPR knockdown systems
Employing gene tagging to confirm antibody recognition
Biochemical validation methods:
Immunoprecipitation followed by mass spectrometry
Peptide competition assays
Western blot with recombinant protein
Context-specific validation:
Application-specific testing (WB, ELISA, IF as appropriate)
Testing across different yeast strains
Validation under varying experimental conditions
Orthogonal validation:
Correlation with RNA expression data
Comparison with alternative antibodies against the same target
Tag-based detection systems as complementary approaches
These validation approaches align with recommendations from antibody reproducibility initiatives and should be documented thoroughly to support the reliability of research findings . YCharOS and similar initiatives have highlighted that comprehensive validation is essential for ensuring antibody specificity, with genetic knockout being the most reliable method .
Addressing lot-to-lot variability for extended research with YPR160W-A antibody:
Proactive inventory management:
Purchase sufficient quantity of a single lot for entire project
Aliquot and store properly to maintain stability
Document lot numbers used in each experiment
Lot comparison protocol:
Directly compare new and old lots side-by-side
Establish acceptance criteria before testing
Document and retain benchmark data from each lot
Reference standard development:
Create internal reference standards (e.g., characterized lysates)
Generate standard curves with each lot
Maintain a reference sample repository
Recalibration strategies:
Adjust working dilutions based on lot comparison
Normalize data based on standard curve shifts
Consider lot-specific protocol modifications
Alternative considerations:
Explore recombinant antibody options if available (generally more consistent)
Validate multiple antibodies against different epitopes
Consider developing custom antibodies for critical long-term projects
Recent literature has highlighted lot-to-lot variation as a major challenge in antibody research, particularly with polyclonal antibodies like the YPR160W-A antibody . Researchers at YCharOS found that recombinant antibodies generally perform more consistently than polyclonal antibodies, which may be an important consideration for long-term studies .
To enhance reproducibility when reporting YPR160W-A antibody usage in publications:
Comprehensive antibody identification:
Full product name and catalog number
Manufacturer information
Lot number
RRID (Research Resource Identifier) if available
Host species and antibody type (polyclonal/monoclonal)
Validation documentation:
Describe all validation experiments performed
Include validation data in supplementary materials
Reference previous validation studies if applicable
Provide images of full, unedited blots or micrographs
Detailed methodology reporting:
Exact dilutions and concentrations used
Complete protocol with buffer compositions
Incubation times and temperatures
Sample preparation methods
Image acquisition parameters
Controls documentation:
Specify all positive and negative controls
Include control data in results or supplements
Describe how controls validate antibody specificity
Data analysis transparency:
Image processing methods
Quantification techniques
Statistical approaches for antibody-derived data
These reporting practices align with current reproducibility initiatives in antibody research and journal guidelines for transparent reporting of antibody-based experiments . Studies have shown that inadequate reporting of antibody validation is common in the literature, with one study finding that 87.5% of immunofluorescence experiments lacked validation data .
When encountering unexpected molecular weight patterns with YPR160W-A antibody in Western blots:
Potential biological explanations:
Post-translational modifications (phosphorylation, glycosylation, ubiquitination)
Alternative splicing variants of YPR160W-A
Protein degradation products
Protein-protein complexes resistant to denaturation
Technical considerations:
Incomplete sample denaturation
Reducing agent inadequacy
Non-linear migration in certain gel types
Transfer efficiency variations
Verification approaches:
Mass spectrometry analysis to confirm protein identity
Treatment with enzymes to remove modifications (e.g., phosphatases, glycosidases)
Size exclusion chromatography to separate complexes
Alternative sample preparation methods
Analysis framework:
| Observed Pattern | Potential Cause | Verification Method |
|---|---|---|
| Higher MW than expected | Post-translational modifications | Enzymatic treatment |
| Lower MW than expected | Proteolytic cleavage | Protease inhibitors |
| Multiple bands | Splice variants | RNA analysis |
| Smeared appearance | Heavy glycosylation | Glycosidase treatment |
Reporting recommendations:
Document all observed bands and their molecular weights
Report variations across experimental conditions
Provide alternative validation of target specificity
For robust statistical analysis of quantitative data generated with YPR160W-A antibody:
Preprocessing considerations:
Normalization methods (to loading controls, total protein)
Background subtraction approaches
Standard curve calibration for absolute quantification
Assessment of technical variability through replicates
Statistical test selection:
For comparing two conditions: t-test (paired or unpaired)
For multiple conditions: ANOVA with appropriate post-hoc tests
For non-normally distributed data: non-parametric alternatives
For time-course studies: repeated measures approaches
Sample size determination:
Power analysis based on expected effect size
Consideration of both biological and technical replicates
Minimum recommended: 3 biological replicates with 2-3 technical replicates each
Addressing antibody-specific considerations:
Accounting for lot-to-lot variability in longitudinal studies
Incorporating validation controls in statistical design
Assessing signal linearity across concentration ranges
Advanced analytical approaches:
Multivariate analysis for complex experimental designs
Machine learning for pattern recognition in large datasets
Bayesian approaches for integrating prior knowledge
These statistical approaches should be determined before data collection and clearly documented in publications to enhance reproducibility and reliability of antibody-based research .
Emerging technologies that may enhance YPR160W-A antibody applications include:
Advanced imaging techniques:
Super-resolution microscopy for precise localization studies
Live-cell imaging with split-antibody complementation systems
Correlative light and electron microscopy for ultrastructural localization
Single-cell applications:
Antibody-based single-cell proteomics
Mass cytometry (CyTOF) for high-parameter protein analysis
Microfluidic approaches for single-cell antibody assays
Proximity labeling technologies:
Antibody-guided APEX2 or BioID systems
Integration with TurboID for rapid proximity labeling
HRP-conjugated antibodies for localized biotinylation
Antibody engineering advances:
Generation of recombinant versions with improved consistency
Development of single-domain antibodies for improved access to epitopes
Camelid nanobodies against YPR160W-A for special applications
Computational approaches:
Machine learning for improved antibody specificity prediction
Integrative data analysis incorporating antibody-based results
Structural modeling to enhance epitope understanding
These emerging technologies could address current limitations in antibody-based research and expand the applications of YPR160W-A antibody in yeast biology . The trend toward recombinant antibodies, as highlighted by YCharOS data showing their superior performance, may be particularly important for future applications .
Translational potential of YPR160W-A research from yeast to broader applications:
Homology-based translation:
Identification of mammalian homologs through bioinformatics
Functional conservation analysis across species
Development of antibodies against homologous proteins
Pathway conservation exploration:
Determination if YPR160W-A participates in evolutionarily conserved pathways
Investigation of related pathways in higher organisms
Potential disease relevance of conserved interactions
Methodological translation:
Adaptation of yeast-optimized protocols to other model systems
Application of validation approaches to related antibodies
Transfer of analytical frameworks to clinical biomarker studies
Biotechnological applications:
Potential industrial applications if YPR160W-A affects yeast metabolism
Development of detection systems for biotechnology processes
Engineered yeast strains based on YPR160W-A research findings
While direct clinical applications may be limited due to the yeast-specific nature of YPR160W-A, the research methodologies and validation approaches developed may have broader implications for antibody research in general, including clinical diagnostic applications .