YBR220C Antibody

What is YBR220C and why is it studied?

YBR220C is a gene locus in Saccharomyces cerevisiae (baker's yeast), specifically from the reference genome sequence derived from laboratory strain S288C. It has gained research interest partly due to its involvement in certain phenotypes, including contribution to hygromycin B resistance when deleted . The protein encoded by this gene is studied within the broader context of yeast genetics and cell biology research, with information about its sequence, genomic context, and protein properties available through resources like the Saccharomyces Genome Database .

What are the key properties of YBR220C Antibody?

YBR220C Antibody (such as product CSB-PA336436XA01SVG) is a polyclonal antibody raised in rabbits using recombinant Saccharomyces cerevisiae (strain ATCC 204508/S288c) YBR220C protein as the immunogen. It's supplied in liquid form containing preservative (0.03% Proclin 300) and stabilizers (50% Glycerol, 0.01M PBS, pH 7.4). The antibody is purified using antigen affinity methods and is intended for research use only, not for diagnostic or therapeutic applications .

What applications are validated for YBR220C Antibody?

The YBR220C Antibody has been tested and validated for applications including Enzyme-Linked Immunosorbent Assay (ELISA) and Western Blot (WB) for identification of the YBR220C antigen. These applications allow researchers to detect and quantify the presence of YBR220C protein in various experimental contexts .

What are the recommended storage conditions for YBR220C Antibody?

Upon receipt, YBR220C Antibody should be stored at -20°C or -80°C. Repeated freeze-thaw cycles should be avoided to maintain antibody integrity and activity. The antibody is typically supplied in a storage buffer containing glycerol and preservatives to enhance stability during storage .

How should I design controls for YBR220C Antibody experiments?

When designing experiments with YBR220C Antibody, include both positive and negative controls. For Western Blot applications, a positive control might include lysate from wild-type S. cerevisiae strain S288c, while a negative control could be a YBR220C deletion strain. Similar to other antibody validation approaches, comparing signal between samples with and without the target protein is essential for confirming specificity .

What is the recommended protocol for validating YBR220C Antibody specificity?

To validate antibody specificity, employ multiple approaches:

• Comparative testing: Test antibody against wild-type yeast and YBR220C knockout strains

• Cross-reactivity assessment: Verify the antibody doesn't cross-react with related proteins

• Blockers and competitors: Use purified YBR220C protein to demonstrate competitive binding

• Multiple techniques confirmation: Validate results across different methodologies (WB, ELISA)

This multi-faceted approach is consistent with standard practices in the field for validating antibody specificity, similar to validation methods used for other antibodies .

How can YBR220C Antibody be utilized in studying hygromycin B resistance phenotypes?

Research has shown that deletions of YBR220C contribute to hygromycin B resistance phenotypes in yeast . To investigate this connection, researchers can:

• Generate YBR220C knockout strains and confirm the deletion using YBR220C Antibody in Western Blot

• Compare protein expression levels in wild-type and resistant strains using quantitative immunoblotting

• Perform protein localization studies under hygromycin B treatment conditions

• Investigate protein-protein interactions that may change during stress response using co-immunoprecipitation with YBR220C Antibody

These approaches can help elucidate the molecular mechanisms behind the observed resistance phenotype .

How does YBR220C Antibody complement genomic studies using SCRaMbLE?

Synthetic Chromosome Rearrangement and Modification by LoxP-mediated Evolution (SCRaMbLE) experiments have identified YBR220C as contributing to hygromycin B resistance when deleted . YBR220C Antibody can complement these studies by:

• Confirming protein absence in deletion strains generated through SCRaMbLE

• Quantifying protein levels in partial deletion or modification events

• Examining protein localization changes in rearranged genomes

• Investigating potential compensatory protein expression changes in response to YBR220C modification

This integration of protein-level analysis with genomic studies provides a more comprehensive understanding of phenotypic changes observed in SCRaMbLE experiments .

What are common issues when using YBR220C Antibody in Western Blot and how can they be resolved?

When using YBR220C Antibody in Western Blot applications, researchers may encounter several common issues:

These troubleshooting approaches follow standard practices for optimizing antibody-based detection methods .

How should I interpret contradictory results between YBR220C Antibody detection and genetic data?

When facing contradictions between antibody-based protein detection and genetic data:

• Verify antibody specificity using knockout controls to confirm the antibody is truly detecting YBR220C

• Consider post-transcriptional regulation that might explain differences between gene and protein levels

• Examine experimental conditions that might affect protein stability or modification state

• Validate results with orthogonal methods such as mass spectrometry or alternative antibodies

• Review genetic modification verification to confirm gene deletions or modifications are as expected

This systematic approach can help reconcile apparently contradictory results and potentially reveal interesting biological regulatory mechanisms .

What considerations are important when using YBR220C Antibody in immunofluorescence studies?

When adapting YBR220C Antibody for immunofluorescence applications:

• Fixation optimization: Different fixation methods (paraformaldehyde vs. methanol) may affect epitope accessibility

• Permeabilization conditions: Yeast cell wall may require specialized permeabilization protocols

• Antibody concentration: Typically requires higher concentrations than for Western Blot

• Appropriate controls: Include both secondary antibody-only controls and YBR220C deletion strains

• Counterstaining: Use DAPI for nuclear visualization and cell wall stains for yeast cell morphology

These approaches are similar to those demonstrated for other antibodies in cellular imaging studies, such as those shown for Insulin R/CD220 in human cell lines .

How can RNA immunoprecipitation techniques be combined with YBR220C Antibody?

If YBR220C is suspected to have RNA-binding properties, researchers can adapt RNA immunoprecipitation (RIP) protocols:

• Form antigen-antibody complexes by incubating yeast cell lysate with YBR220C Antibody

• Capture complexes using appropriate secondary antibody-conjugated magnetic beads

• Extensively wash complexes to remove non-specific interactions

• Elute and analyze associated RNAs through sequencing or RT-PCR

This approach mirrors established RIP protocols used for other RNA-binding proteins, with appropriate modifications for yeast cells and YBR220C-specific optimizations .

What are the considerations for using YBR220C Antibody in flow cytometry?

While YBR220C Antibody is primarily validated for ELISA and Western Blot , adapting it for flow cytometry would require:

• Cell preparation: Specialized protocols for yeast cell wall digestion and permeabilization

• Antibody titration: Determining optimal concentration through dilution series

• Appropriate controls: Including unstained cells, secondary-only controls, and YBR220C deletion strains

• Fluorophore selection: Choosing compatible fluorophores with minimal spectral overlap with yeast autofluorescence

• Gating strategy: Developing appropriate gating to distinguish positive from negative populations

These considerations follow standard flow cytometry practices, similar to those demonstrated for other antibodies like Insulin R/CD220 .