YCR061W Antibody

What is YCR061W and what organism is it found in?

YCR061W is a protein encoded by the YCR061W gene found in Saccharomyces cerevisiae (baker's yeast), specifically in the reference strain ATCC 204508 / S288c. According to the UniProt database, this protein is associated with accession number P25639. The nomenclature follows standard yeast gene naming conventions where "Y" indicates a yeast gene, "CR" refers to chromosome III, and "061W" indicates it is the 61st open reading frame on the Watson (W) strand of that chromosome .

What applications is YCR061W Antibody suitable for?

YCR061W Antibody is primarily used in various research applications including:

• Western blotting for protein expression analysis

• Immunoprecipitation for protein interaction studies

• Immunofluorescence microscopy for subcellular localization

• ELISA assays for quantitative detection

• ChIP assays (if the protein has DNA-binding properties)

• Flow cytometry for cell-based analysis

What sample types can be analyzed using YCR061W Antibody?

The antibody is specifically designed for detecting YCR061W protein in Saccharomyces cerevisiae (strain ATCC 204508 / S288c). It can be used with various yeast sample preparations including:

• Whole cell lysates

• Subcellular fractions

• Purified protein preparations

• Fixed yeast cells for microscopy

• Yeast spheroplasts

What is the recommended protocol for Western blotting with YCR061W Antibody?

While specific optimization is necessary for each research setting, a general protocol for Western blotting with yeast proteins includes:

Sample Preparation:

• Harvest yeast cells at appropriate growth phase

• Lyse cells using glass bead disruption in appropriate buffer

• Clear lysate by centrifugation (14,000g, 10 minutes, 4°C)

• Quantify protein concentration using Bradford or BCA assay

Western Blotting:

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

• Transfer to PVDF or nitrocellulose membrane (wet transfer recommended)

• Block with 5% non-fat milk in TBST for 1 hour at room temperature

• Incubate with YCR061W Antibody (initial dilution 1:1000) overnight at 4°C

• Wash 3x with TBST

• Incubate with appropriate HRP-conjugated secondary antibody (1:5000) for 1 hour

• Develop using ECL substrate and image

How should immunoprecipitation be performed using YCR061W Antibody?

For immunoprecipitation of YCR061W from yeast lysates:

• Prepare yeast lysate in non-denaturing buffer (50 mM Tris-HCl pH 7.5, 150 mM NaCl, 0.5% NP-40, protease inhibitors)

• Pre-clear lysate with Protein A/G beads for 1 hour at 4°C

• Incubate cleared lysate with YCR061W Antibody (2-5 μg per mg of total protein) overnight at 4°C

• Add fresh Protein A/G beads and incubate for 2-3 hours at 4°C

• Wash beads 4-5 times with wash buffer (increasing stringency)

• Elute bound proteins with SDS sample buffer (95°C, 5 minutes)

• Analyze by SDS-PAGE and Western blotting

What protocol is recommended for immunofluorescence with YCR061W Antibody?

For immunofluorescence microscopy of yeast cells:

• Fix yeast cells with 3.7% formaldehyde for 30-60 minutes

• Prepare spheroplasts using zymolyase (1 mg/ml, 30 minutes at 30°C)

• Permeabilize with 0.1% Triton X-100 for 10 minutes

• Block with 3% BSA in PBS for 30 minutes

• Incubate with YCR061W Antibody (1:100-1:500 dilution) for 2 hours or overnight

• Wash 3x with PBS

• Incubate with fluorophore-conjugated secondary antibody (1:500-1:1000) for 1 hour

• Counterstain nucleus with DAPI (1 μg/ml) for 5 minutes

• Mount and image using appropriate filters

What are the optimal storage conditions for YCR061W Antibody?

For maximum longevity and performance:

• Upon receipt, aliquot the antibody to minimize freeze-thaw cycles

• Store aliquots at -20°C for long-term storage

• Working stock can be kept at 4°C for up to 2 weeks

• Add sodium azide (0.02%) as preservative for longer storage at 4°C

• Avoid repeated freeze-thaw cycles

• Centrifuge briefly before opening to collect liquid at the bottom of the tube

What are common troubleshooting approaches for weak or no signal?

When experiencing weak or absent signals with YCR061W Antibody:

• Increase protein loading amount (up to 50-100 μg)

• Optimize antibody concentration (try serial dilutions)

• Extend primary antibody incubation time (overnight at 4°C)

• Use more sensitive detection systems (ECL Plus, fluorescent detection)

• Verify protein expression level in your sample

• Check for protein degradation during sample preparation

• Try different extraction methods to improve protein solubility

• Ensure the epitope is not masked by protein folding or modifications

What strategies can reduce non-specific binding?

To improve specificity:

• Optimize blocking conditions (test different blockers: milk, BSA, serum)

• Increase washing stringency (higher salt, mild detergents)

• Pre-adsorb antibody with acetone powder from yeast lacking YCR061W

• Titrate antibody concentration to minimum effective level

• Use more specific secondary antibodies

• Include appropriate controls (knockout strains where available)

• Consider using affinity-purified antibody preparations

How can YCR061W Antibody be used for protein interaction studies?

For investigating protein-protein interactions:

• Co-immunoprecipitation (Co-IP):

  • Use YCR061W Antibody to pull down protein complexes

  • Detect interacting partners by Western blotting with specific antibodies

  • Confirm interactions with reciprocal IPs

• Proximity Ligation Assay (PLA):

  • Combine YCR061W Antibody with antibody against suspected interacting partner

  • Use PLA probes and detection system to visualize interactions in situ

• Immunofluorescence co-localization:

  • Perform dual staining with YCR061W Antibody and antibodies against potential partners

  • Analyze co-localization using confocal microscopy and quantitative image analysis

How can epitope mapping be performed for YCR061W Antibody?

Advanced techniques for epitope characterization include:

• Peptide array analysis:

  • Synthesize overlapping peptides spanning YCR061W sequence

  • Test antibody binding to identify specific recognition regions

• Deletion mapping:

  • Create truncated versions of YCR061W protein

  • Test recognition by Western blotting to narrow down epitope region

• Site-directed mutagenesis:

  • Introduce specific amino acid changes in the predicted epitope region

  • Assess impact on antibody binding to identify critical residues

• Hydrogen-deuterium exchange mass spectrometry (HDX-MS):

  • Identify regions protected from exchange when antibody is bound

  • Provides structural information about the epitope

What considerations are important when using YCR061W Antibody in mutant yeast strains?

When working with mutant strains:

• Confirm the mutation doesn't affect the epitope recognized by the antibody

• Use appropriate wild-type controls processed in parallel

• Account for potential changes in protein expression levels

• Consider compensatory mechanisms that might affect interpretation

• Verify strain identity and mutation through genotyping

• Control for differences in growth conditions or stress responses

• Normalize to appropriate loading controls not affected by the mutation

How can YCR061W Antibody be validated for specificity?

Rigorous validation approaches include:

• Testing in YCR061W knockout or knockdown strains (negative control)

• Overexpression systems to confirm increased signal (positive control)

• Pre-absorption with purified antigen or epitope peptides

• Western blot analysis confirming a single band at the expected molecular weight

• Mass spectrometry confirmation of immunoprecipitated proteins

• Comparison with results from orthogonal techniques (e.g., GFP-tagging)

• Cross-reactivity testing with closely related proteins

What controls should be included in experiments using YCR061W Antibody?

Essential controls include:

• Positive control:

  • Wild-type yeast strain known to express YCR061W

  • Recombinant YCR061W protein (if available)

• Negative control:

  • YCR061W deletion strain (if available)

  • Secondary antibody only (no primary antibody)

  • Isotype control (irrelevant antibody of same isotype)

• Validation controls:

  • Peptide competition assay

  • Loading controls for Western blotting (e.g., actin, GAPDH)

  • Subcellular marker controls for localization studies

What technical specifications should be documented when using YCR061W Antibody?

For reproducibility and troubleshooting, record:

How can YCR061W Antibody be combined with genetic approaches?

Integrating antibody-based detection with genetic methods:

• Correlate protein levels with phenotypes in different genetic backgrounds

• Combine with CRISPR-Cas9 genome editing to study effects of specific mutations

• Use in synthetic genetic array analysis to identify genetic interactions

• Analyze protein expression in response to specific gene deletions or overexpression

• Study post-translational modifications in different genetic backgrounds

What methodologies combine YCR061W Antibody with other "omics" approaches?

Multi-omics integration strategies include:

• Proteomics integration:

  • Mass spectrometry analysis of immunoprecipitated complexes

  • Correlation of antibody-detected levels with global proteome changes

• Transcriptomics correlation:

  • Compare protein levels detected by antibody with mRNA expression data

  • Investigate post-transcriptional regulation mechanisms

• Metabolomics connection:

  • Correlate YCR061W protein levels with metabolic changes

  • Investigate role in specific metabolic pathways

• Structural biology:

  • Use antibody in protein purification for structural studies

  • Epitope mapping for structural domain analysis

How can immunofluorescence results be optimized with YCR061W Antibody?

For improved immunofluorescence results:

• Optimize fixation method and duration (formaldehyde vs. methanol)

• Test different cell wall digestion conditions for optimal spheroplasting

• Try various permeabilization agents and concentrations

• Experiment with different blocking reagents (BSA, normal serum, casein)

• Test a range of antibody dilutions and incubation times

• Use high-quality fluorescent secondary antibodies

• Include appropriate counterstains for reference structures

• Employ confocal microscopy for improved resolution

What are effective strategies for optimizing immunoprecipitation efficiency?

To improve immunoprecipitation results:

• Test different lysis buffers to optimize protein extraction

• Vary antibody amounts (1-10 μg per mg of total protein)

• Adjust antibody incubation time (2 hours to overnight)

• Test different types of beads (Protein A, Protein G, or magnetic beads)

• Optimize washing stringency to balance specificity and yield

• Consider crosslinking antibody to beads to prevent antibody elution

• Use gentler elution methods for co-IP applications

• Scale up reaction for low-abundance targets

What methods can verify antibody binding specificity in yeast systems?

Yeast-specific validation approaches:

• Use gene deletion library strains to confirm absence of signal

• Employ epitope-tagged versions of YCR061W for parallel detection

• Utilize yeast two-hybrid system to confirm detected interactions

• Perform peptide competition assays with synthetic yeast peptides

• Compare reactivity across different yeast species with known sequence homology

• Use temperature-sensitive mutants to correlate protein function with detection

What key experimental variables affect YCR061W detection?

Critical variables to control:

• Growth conditions:

  • Growth phase (log vs. stationary)

  • Carbon source (glucose, galactose, glycerol)

  • Nutrient availability and limitations

  • Temperature and pH

• Sample preparation:

  • Lysis method efficiency

  • Buffer composition and pH

  • Protease inhibitor cocktail inclusion

  • Sample handling temperature

• Detection parameters:

  • Primary antibody concentration

  • Incubation time and temperature

  • Secondary antibody selection

  • Signal development method

How should contradictory results be investigated when using YCR061W Antibody?

When facing data inconsistencies:

• Verify antibody integrity (test new aliquot or lot)

• Confirm strain identity through genotyping

• Check for experimental variables that might differ between experiments

• Test alternative detection methods for the same protein

• Consider post-translational modifications that might affect detection

• Evaluate potential changes in protein localization or solubility

• Consult literature for known issues with this protein class

• Consider biological variability in expression levels

What considerations are important for quantitative analysis with YCR061W Antibody?

For reliable quantitation:

• Establish linear detection range through standard curves

• Use appropriate normalization controls (housekeeping proteins)

• Perform technical and biological replicates

• Control loading amount precisely

• Use digital image acquisition with appropriate dynamic range

• Avoid signal saturation during image acquisition

• Apply appropriate statistical analysis methods

• Consider factors affecting protein stability and turnover