YDL162C Antibody

What is YDL162C and why is it studied?

YDL162C is an uncharacterized open reading frame (ORF) in Saccharomyces cerevisiae (baker's yeast). Studying this protein contributes to our understanding of yeast biology, potentially revealing novel functions within cellular pathways. The antibody against YDL162C provides a valuable tool for detecting, quantifying, and localizing this protein within yeast cells, enabling researchers to investigate its expression patterns, subcellular localization, and potential binding partners.

What are the technical specifications of the YDL162C antibody?

The YDL162C antibody (product code CSB-PA619583XA01SVG) is a polyclonal antibody raised in rabbits against recombinant YDL162C protein expressed in S. cerevisiae strain ATCC 204508/S288c. It is provided in liquid form, non-conjugated, with a storage buffer containing 0.03% Proclin 300, 50% Glycerol, and 0.01M PBS (pH 7.4). The antibody has been purified using antigen affinity methods and corresponds to UniProt accession number Q12307 .

What applications has the YDL162C antibody been validated for?

The YDL162C antibody has been specifically validated for:

• Western blotting: Detects a single band at approximately 35 kDa in yeast lysates

• ELISA: Demonstrates a linear detection range of 0.1–10 ng/mL for purified YDL162C protein

• Immunofluorescence (IF): Enables subcellular localization studies

These validated applications make the antibody suitable for multiple experimental approaches in yeast biology research.

What are the recommended storage conditions for YDL162C antibody?

Upon receipt, the YDL162C antibody should be stored at -20°C or preferably -80°C for optimal stability. The antibody maintains activity for up to 24 months when stored at -80°C. To preserve antibody integrity, it is critical to avoid repeated freeze-thaw cycles by preparing small aliquots upon initial receipt .

What is the recommended sample preparation method for Western blotting with YDL162C antibody?

For optimal results in Western blotting applications, trichloroacetic acid (TCA) extraction is recommended for sample preparation to preserve protein integrity. This method effectively prevents proteolysis during extraction, which is particularly important when working with yeast proteins. The recommended antibody dilution range for Western blotting is 1:500–1:2,000, though optimal dilution should be determined empirically for each experimental setup.

How should appropriate controls be implemented when using the YDL162C antibody?

When working with the YDL162C antibody, the following controls are essential for experimental validation:

• Primary control: Include ΔYDL162C knockout strains to confirm signal specificity

• Loading control: Use established yeast housekeeping proteins (e.g., actin, GAPDH) to normalize protein levels

• Concentration gradient: Test antibody performance across multiple dilutions to optimize signal-to-noise ratio

These controls ensure the reliability and reproducibility of experimental results while confirming the specificity of the detected signal.

What are the parameters for optimizing ELISA with YDL162C antibody?

The YDL162C antibody demonstrates a linear detection range of 0.1–10 ng/mL in ELISA applications. For optimal results:

• Coating concentration: Titrate antigen coating concentration (typically 1-10 μg/mL)

• Blocking buffer: Use 1-5% BSA in PBS to minimize background

• Antibody concentration: Start with manufacturer's recommended dilution (typically 1:500-1:2,000)

• Incubation conditions: Optimize both temperature (4°C-25°C) and duration (1-12 hours)

• Detection system: Select appropriate secondary antibody and substrate combination based on desired sensitivity

Systematic optimization of these parameters will enhance assay sensitivity and reproducibility.

How can YDL162C antibody be applied for protein interaction studies?

The YDL162C antibody can be effectively utilized for co-immunoprecipitation (Co-IP) studies to identify protein interaction networks. For optimal results:

• Crosslinking: Consider using DSP (dithiobis[succinimidyl propionate]) or formaldehyde to stabilize transient interactions

• Lysis conditions: Use gentle, non-denaturing buffers (e.g., 20 mM HEPES pH 7.4, 150 mM NaCl, 0.5% NP-40) supplemented with protease inhibitors

• Pre-clearing: Incubate lysates with protein A/G beads to reduce non-specific binding

• Antibody incubation: Use 2-5 μg antibody per 1 mg of total protein extract

• Mass spectrometry analysis: Follow precipitation with proteomics analysis to identify binding partners

This approach facilitates comprehensive mapping of YDL162C's protein interaction network, providing insights into its cellular functions.

What strategies can be employed for analyzing YDL162C expression under different stress conditions?

To effectively profile YDL162C expression under various stress conditions:

• Stress parameters:

  • Heat shock: 37-42°C for 15-60 minutes

  • Nutrient deprivation: Growth in minimal media lacking specific nutrients

  • Oxidative stress: Treatment with H₂O₂ (0.1-5 mM)

  • Osmotic stress: Exposure to high salt (0.4-1.0 M NaCl)

• Time-course analysis: Collect samples at multiple timepoints (0, 15, 30, 60, 120 minutes) after stress induction

• Quantification methods:

  • Western blotting with densitometric analysis

  • qPCR for transcriptional changes

  • ELISA for precise protein quantification

• Data normalization: Compare expression levels to established stress-response genes as internal controls

This systematic approach allows for comprehensive characterization of YDL162C's potential role in stress response pathways.

How can immunofluorescence with YDL162C antibody be optimized for subcellular localization studies?

For precise subcellular localization of YDL162C using immunofluorescence:

• Fixation method: Compare 4% paraformaldehyde with methanol fixation to determine optimal protocol

• Permeabilization: Use 0.1-0.5% Triton X-100 for cell wall and membrane permeabilization

• Blocking: Implement 3-5% BSA in PBS with 0.1% Tween-20 to minimize non-specific binding

• Antibody dilution: Test range of 1:100-1:500 for primary antibody

• Co-staining: Include organelle markers (nucleus, mitochondria, ER, Golgi) for precise localization

• Z-stack imaging: Acquire multiple focal planes for three-dimensional reconstruction

• Deconvolution: Apply appropriate algorithms to enhance resolution

These optimization steps enable precise determination of YDL162C's subcellular distribution under various conditions.

What are common issues encountered with YDL162C antibody and how can they be resolved?

Systematic evaluation of these factors will help resolve technical challenges and improve experimental reproducibility .

How can researchers validate antibody specificity for YDL162C?

To comprehensively validate the specificity of YDL162C antibody:

• Genetic validation: Compare wildtype and ΔYDL162C knockout strains in Western blot and immunofluorescence applications

• Immunodepletion: Pre-incubate antibody with purified recombinant YDL162C protein to confirm signal elimination

• Mass spectrometry: Identify proteins in immunoprecipitated fractions to confirm target identity

• Cross-reactivity assessment: Test antibody against other yeast species or mammalian systems where no reactivity is expected

• Epitope mapping: Determine specific binding regions through peptide arrays or alanine scanning mutagenesis

These complementary approaches provide robust confirmation of antibody specificity, essential for reliable experimental interpretation.

What considerations are important when integrating YDL162C antibody with advanced proteomics approaches?

When combining YDL162C antibody with proteomics techniques:

• IP-MS workflow:

  • Use mild detergents (0.1-0.5% NP-40 or Digitonin) for cell lysis

  • Perform sequential elution to separate specific from non-specific interactions

  • Incorporate stable isotope labeling (SILAC) for quantitative interaction analysis

• Chromatin immunoprecipitation (ChIP):

  • Optimize crosslinking conditions (1% formaldehyde, 10-15 minutes)

  • Ensure complete sonication to appropriate fragment size (200-500 bp)

  • Include input and IgG controls for normalization

• Proximity labeling approaches:

  • Consider fusion of BioID or APEX2 to YDL162C for proximity proteomics

  • Validate fusion protein expression and functionality

  • Optimize biotin labeling conditions for comprehensive interactome mapping

These integrated approaches expand the utility of YDL162C antibody for comprehensive protein interaction studies.

How does YDL162C antibody compare with emerging antibody technologies?

While YDL162C antibody represents a conventional polyclonal approach, recent advances in antibody technology offer complementary methods:

• Recombinant antibody production: Engineered antibody fragments (e.g., single-chain variable fragments, nanobodies) can provide enhanced specificity and reduced batch-to-batch variability compared to traditional polyclonal antibodies like anti-YDL162C

• Antibody engineering approaches: Computational tools like DyAb (sequence-based antibody design) leverage machine learning to optimize antibody binding properties, potentially enhancing affinity beyond what is achievable with conventional polyclonal antibodies

• Epitope-specific antibodies: Unlike polyclonal YDL162C antibody that recognizes multiple epitopes, newer monoclonal approaches provide epitope-specific recognition that can distinguish between different conformational states of proteins

Researchers should consider these complementary approaches based on their specific experimental requirements.

What methodological approaches can be combined with YDL162C antibody for comprehensive functional analysis?

To fully characterize YDL162C function using the antibody:

• CRISPR-based genetic manipulation:

  • Generate tagged variants for complementary detection methods

  • Create domain-specific deletions to map functional regions

  • Implement analog-sensitive mutations for temporal control

• Quantitative interactomics:

  • Combine immunoprecipitation with mass spectrometry

  • Implement BioID proximity labeling for spatial interaction mapping

  • Apply crosslinking mass spectrometry for structural insights

• High-throughput phenotypic analysis:

  • Correlate YDL162C expression levels with growth phenotypes

  • Screen for genetic interactions using synthetic genetic arrays

  • Map epistatic relationships through double-mutant analysis

Integration of these methodologies provides a systems-level understanding of YDL162C's cellular functions and regulatory networks.