The RTT10 antibody is a research tool used to study the RTT10 gene product in Saccharomyces cerevisiae (budding yeast). RTT10 (also known as ERE2, TRM734, or YPL183C) is a WD40 domain-containing protein involved in endosomal recycling, tRNA modification, and regulation of Ty1 transposition . Its human ortholog, WDR6, shares functional homology but remains less characterized.
The RTT10 antibody has been employed in affinity capture-mass spectrometry (MS) to identify interaction partners. Key findings include:
Self-interaction: RTT10 forms homodimers, critical for its role in the retromer-mediated recycling pathway .
Complex Formation: It interacts with Rrt2p to facilitate recycling of internalized cell-surface proteins .
tRNA Modification: RTT10 collaborates with Trm7p for 2'-O-methylation of tRNA at position 34, ensuring translational fidelity .
Ty1 Transposition Regulation: RTT10 modulates Ty1 retrotransposon activity, impacting genome stability .
A seminal study using RTT10 antibody revealed its association with RNA-processing complexes, highlighting its role in macromolecular assembly :
| Bait | Prey | Interaction Type | Method |
|---|---|---|---|
| RTT10 | RTT10 | Homodimerization | Affinity Capture-MS |
| RTT10 | Rrt2p | Retromer complex formation | Affinity Capture-MS |
Deletion Mutants: RTT10 deletion in yeast disrupts endosomal recycling and increases Ty1 transposition frequency .
Functional Redundancy: WD40 domain integrity is essential for RTT10’s role in tRNA methylation .
While RTT10 itself is yeast-specific, its human ortholog WDR6 is implicated in:
Cancer: WD40 proteins are frequently dysregulated in tumors.
Neurological Disorders: Endosomal recycling defects are linked to neurodegenerative diseases like Alzheimer’s .
Antibody Specificity: Current RTT10 antibodies are primarily used in yeast models; human WDR6-targeting antibodies remain under development.
Therapeutic Potential: Modulating RTT10/WDR6 interactions could address tRNA modification defects or transposon-related genomic instability.
- BioGRID Interaction Database: RTT10 self-interaction and retromer function.
- Saccharomyces Genome Database: Genetic and molecular features of RTT10.
- Allucent: Broader context on antibody therapy in rare disease research.
KEGG: sce:YPL183C
STRING: 4932.YPL183C
RTT106 is a protein initially identified in Saccharomyces cerevisiae (baker's yeast), with research indicating its involvement in chromatin organization processes. Based on available antibody product information, RTT106 antibodies are primarily utilized for Western Blot (WB) and ELISA applications in research settings . These applications facilitate the detection and quantification of RTT106 protein in various experimental contexts, serving as essential tools for investigating chromatin-related biological processes and gene expression regulation mechanisms. Unlike antibodies developed for therapeutic purposes, RTT106 antibodies are principally employed as research reagents for detecting specific proteins and biomarkers.
The available RTT106 antibodies exhibit reactivity across multiple species, with specific antibodies developed for:
This diversity in species reactivity makes these antibodies valuable tools for comparative studies across evolutionary diverse organisms. When selecting an RTT106 antibody for research, investigators should carefully evaluate the specific species reactivity needed for their experimental model system to ensure optimal target recognition and experimental validity.
When selecting an RTT106 antibody for research applications, investigators should consider several critical factors:
Application compatibility: Confirm the antibody has been validated for your specific application (WB, ELISA, etc.)
Species reactivity: Ensure compatibility with your experimental model organism (bacterial, fungal, or yeast systems)
Antibody format: Determine whether conjugated or non-conjugated formats are appropriate for your detection method
Clonality: Consider whether polyclonal or monoclonal antibodies better suit your research needs
Validation data: Review supplier validation data, including specificity testing and performance in relevant applications
Literature citations: Check for published research using the specific antibody to assess real-world performance
Choosing antibodies that have been cited in peer-reviewed literature or have published validation data significantly increases the likelihood of experimental success and reproducibility.
Surface Plasmon Resonance (SPR) provides a powerful tool for quantitatively assessing antibody-antigen interactions. For RTT106 antibodies, the methodology would follow established protocols similar to those used for other research antibodies :
Sensor chip preparation: Immobilize recombinant RTT106 protein (ligand) on a CM5 sensor chip using amine coupling chemistry
Reference surface preparation: Activate a reference surface with EDC/NHS and block with ethanolamine to account for non-specific binding
Concentration series: Prepare a concentration series of anti-RTT106 IgGs (e.g., 0.13, 0.41, 1.23, 3.7, 11.1, and 33.3 nM)
Binding measurements: Pass antibody solutions over the immobilized RTT106 protein
Data analysis: Fit reference-subtracted sensorgrams using evaluation software to calculate the dissociation constant (KD)
This approach enables precise quantification of binding kinetics and affinity, which is crucial for comparing different RTT106 antibody clones or evaluating the impact of antibody engineering efforts on binding properties.
While RTT106 antibodies are primarily used as research reagents rather than therapeutic agents, understanding Fc-mediated functions remains relevant for certain applications:
Antibody-dependent cellular cytotoxicity (ADCC): Process where Fc regions of antibodies bound to target cells engage Fc receptors on effector cells, triggering cytotoxic activity
Antibody-dependent cell-mediated phagocytosis (ADCP): Mechanism where antibody-opsonized targets are engulfed by phagocytic cells through Fc receptor engagement
Complement-dependent cytotoxicity (CDC): Activation of complement cascade through antibody Fc regions
For RTT106 antibodies, these mechanisms may be relevant in:
Immunoprecipitation experiments where Fc interactions with protein A/G are critical
Cell-based assays where isotype selection may impact background or non-specific effects
Development of functional assays investigating RTT106 biology
Research has demonstrated that antibodies recognizing identical epitopes may exhibit dramatically different Fc-mediated functions, even when engineered with identical Fc regions and glycosylation patterns . This underscores the importance of empirical testing of each antibody for specific applications.
In silico modeling approaches provide valuable insights into antibody-antigen interactions before experimental validation. For RTT106 antibodies, computational approaches similar to those applied to other research antibodies can be employed:
Protein preparation: Process the RTT106 protein structure (if available in PDB) and antibody structure using software like Schrödinger's Biologics Suite
Add missing hydrogen atoms
Correct metal ionization states
Remove co-crystallized water molecules
Perform restrained minimization
Protein-protein docking: Upload energy-minimized structures of antibody and RTT106 antigen
Define sampling parameters (e.g., 1.2 Å grid cell size)
Calculate receptor-ligand interactions using Fast Fourier transforms
Cluster results and retain lowest energy translations
Interaction analysis: Analyze results to identify:
Epitope mapping confirmation: Validate computational predictions using experimental approaches such as overlapping peptide-based epitope mapping to identify linear epitope sequences
This approach can guide experimental design, antibody engineering efforts, and interpretation of functional data for RTT106 antibodies.
Implementing rigorous quality control measures for Western blotting with RTT106 antibodies ensures reliable and reproducible results:
Positive and negative controls:
Positive control: Lysates from cells known to express RTT106 (e.g., yeast extracts for fungal-reactive antibodies)
Negative control: Lysates from RTT106 knockout cells or non-expressing cell types
Recombinant RTT106 protein as a size reference
Antibody validation steps:
Titration experiments to determine optimal antibody concentration
Blocking peptide competition to confirm specificity
Secondary antibody-only controls to identify non-specific background
Technical considerations:
Consistent sample preparation protocols
Standardized protein quantification methods
Inclusion of molecular weight markers
Documentation of complete experimental conditions
Signal detection optimization:
Appropriate exposure times to avoid saturation
Signal quantification using standardized methods
Multiple biological and technical replicates
Statistical analysis of quantified signals
These measures help ensure that any detected signals genuinely represent RTT106 protein and not experimental artifacts or non-specific binding.
While RTT106 antibodies are primarily used for in vitro research applications, the principles of radiolabeling antibodies can be applied if required for specialized research applications:
Chelator conjugation:
Conjugate a bifunctional chelator (e.g., DFO) to the RTT106 antibody
Optimize conjugation conditions to maintain antibody functionality
Purify the chelator-antibody conjugate
Radiolabeling process:
Quality control assessment:
Determine specific activity (e.g., MBq/μg)
Verify radiochemical purity (>95% typically required)
Assess immunoreactivity post-labeling
Evaluate stability under storage conditions
Functional validation:
Confirm that radiolabeling doesn't impair binding to RTT106
Verify specificity using appropriate control experiments
Test binding kinetics pre- and post-labeling
The specific activity achieved with this approach can reach values of approximately 0.09 MBq/μg with radiolabeling yields of >99% , though specific values would need to be determined empirically for RTT106 antibodies.
Epitope mapping provides crucial information about the specific binding regions of RTT106 antibodies, informing both research applications and antibody development:
Overlapping peptide array analysis:
Generate overlapping peptides (typically 15-20 amino acids with 5 amino acid offset) spanning the full RTT106 sequence
Immobilize peptides on membrane or glass slides
Probe with the RTT106 antibody
Detect binding regions using secondary antibodies or direct detection methods
Mutagenesis approaches:
Create alanine scanning mutants of RTT106
Express mutant proteins
Test antibody binding to each mutant
Identify critical binding residues
Hydrogen-deuterium exchange mass spectrometry (HDX-MS):
Compare deuterium uptake patterns of RTT106 alone versus RTT106-antibody complex
Identify regions protected from exchange in the complex
Map protected regions to the RTT106 structure
X-ray crystallography or cryo-EM:
For definitive structural characterization, determine the structure of the RTT106-antibody complex
Identify all interacting residues at atomic resolution
Characterize the nature of binding interactions
These approaches provide complementary information about epitope characteristics, which can inform antibody specificity, cross-reactivity potential, and applications in different experimental contexts.
The following table summarizes the comparative characteristics of commercially available RTT106 antibodies:
| Supplier | Product | Applications | Species Reactivity | Format | Quantity Available |
|---|---|---|---|---|---|
| Biorbyt | RTT106 antibody | WB, ELISA | Bacteria (Ba) | Unconjugated | 10 mg |
| CUSABIO | RTT106 Antibody | WB, ELISA | Fungus (Fu) | Non-conjugate | Inquire |
| CUSABIO | RTT106 Antibody | WB, ELISA | Saccharomyces | Non-conjugate | Inquire |
| MyBioSource | Rabbit Anti-RTT106 Antibody | WB, ELISA | Fungus (Fu) | Non-conjugate | Inquire |
| MyBioSource | Rabbit Anti-RTT106 Antibody | WB, ELISA | Saccharomyces | Non-conjugate | Inquire |
| Creative Diagnostics | Anti-S. cerevisiae RTT106 Polyclonal antibody | Western Blot (WB) | Not specified | Unconjugated | 100 μg |
This comparison reveals that current RTT106 antibodies are primarily optimized for Western Blot and ELISA applications, with reactivity against bacterial, fungal, and yeast species . When selecting an antibody, researchers should consider the specific experimental requirements, including target organism, application, and quantity needed.
Researchers working with RTT106 antibodies may encounter several challenges that can be addressed through systematic troubleshooting:
Weak or absent signal in Western blot:
Increase antibody concentration or incubation time
Optimize protein loading amounts
Verify target expression in your specific sample
Test alternative detection methods or more sensitive substrates
Check buffer compatibility with the specific antibody
High background or non-specific binding:
Increase blocking stringency (longer blocking time or different blocking agent)
Optimize antibody dilution
Increase wash steps in duration or number
Test alternative secondary antibodies
Consider using different membrane types
Inconsistent results across experiments:
Standardize protein extraction and quantification methods
Prepare larger batches of antibody dilutions to use across experiments
Document and control all experimental variables
Implement positive controls in each experiment
Consider antibody storage conditions and avoid freeze-thaw cycles
Cross-reactivity with non-target proteins:
Perform blocking peptide competition assay
Validate results with a second antibody targeting a different epitope
Include appropriate knockout or knockdown controls
Consider pre-adsorption of antibody with non-specific proteins
Each of these challenges requires systematic investigation and methodical optimization to achieve reliable, reproducible results with RTT106 antibodies.
Emerging antibody technologies offer exciting opportunities to advance RTT106 research:
Single-domain antibodies and nanobodies:
Smaller size enables access to cryptic epitopes on RTT106
Potential for improved penetration in cellular applications
Simpler recombinant production systems
Opportunities for novel fusion proteins and detection systems
Recombinant antibody engineering:
Custom-designed Fc regions with specific effector functions
Site-specific conjugation for improved homogeneity
Affinity maturation for enhanced sensitivity
Humanization for potential translational applications
Multispecific antibody formats:
Bispecific antibodies targeting RTT106 and interacting proteins
Antibody-fusion proteins for specialized detection applications
Proximity-based detection systems using split reporters
Advanced conjugation strategies:
Enzymatically-activated probes for enhanced detection sensitivity
Click chemistry approaches for modular functionalization
Controlled antibody fragmentation for specialized applications