MYB proteins (e.g., c-MYB, B-MYB) are transcription factors critical in hematopoiesis, cancer progression, and immune regulation. Antibodies targeting MYB are used to study its role in diseases like leukemia, lymphoma, and solid tumors.
b-Myb (F9W2M): Detects endogenous b-Myb in human, mouse, and rat cells. Used for studying b-Myb’s role in cell cycle regulation and cancer .
MYB/c-Myb (68542-1-Ig): Validated in Jurkat and MOLT-4 cells (human T-lymphocytes). Detects intracellular MYB via flow cytometry .
b-Myb (F9W2M): Used to identify MYB binding sites in promoters of genes like MYC and CCNB1 in MCF-7 breast cancer cells .
Anti-c-MYB (1493/Ab1.1): Identified 11,290 MYB-bound promoters in estrogen-stimulated MCF-7 cells, including BRCA1, KIT, and NANOG .
MYBMIM Peptide: Disrupts MYB:CBP/p300 interactions, reducing MYC and BCL2 expression. Induces apoptosis in AML cells (e.g., MV411) but spares normal hematopoietic cells .
Knockdown Studies: MYB silencing in MLL-AF9 leukemia models reduces leukemia stem cells (LSCs) and tumor burden .
Cisplatin Resistance: MYB upregulates PI3K-AKT signaling in cochlear hair cells, protecting against cisplatin-induced apoptosis .
Leukemia Stem Cells: MYB interacts with IGF2BP1 to promote chemotherapy resistance. IGF2BP1 knockdown sensitizes cells to doxorubicin .
Specificity: MYB antibodies may cross-react with non-specific bands (e.g., 60 kDa in b-Myb assays ).
Clinical Translation: MYBMIM analogs (e.g., CRYBMIM) show promise but require optimization for in vivo delivery .
Biomarkers: MYB overexpression correlates with poor prognosis in colorectal cancer, warranting further validation as a therapeutic target .
MYB87 is a monoclonal antibody with high specificity for Mycoplasma bovis strain M23 and several other M. bovis strains (including Emm, Bat, 1315, M66, and M84). It is mouse-derived and primarily used in ELISA applications for detecting M. bovis in research settings . This antibody should not be confused with antibodies targeting the MYB transcription factor (c-Myb), which is involved in hematopoietic cell development and leukemia .
The primary validated application for MYB87 antibody is ELISA (Enzyme-Linked Immunosorbent Assay). It has been specifically designed and validated for the detection of Mycoplasma bovis in microbiology research contexts . While not directly stated in the available data, this suggests the antibody is valuable for diagnostic research, pathogen detection studies, and investigations into M. bovis infections.
Based on standard protocols for similar research antibodies, MYB87 should be stored according to manufacturer recommendations. For most antibodies in liquid form, storage at -20°C is typically recommended to maintain stability and reactivity . The antibody preparation contains preservatives (likely sodium azide) and may be shipped on dry ice to maintain integrity . Always refer to the specific product documentation for definitive storage instructions.
Before incorporating MYB87 antibody into research protocols, validation should include:
Positive control testing using known M. bovis strains (particularly strain M23)
Negative control testing with non-M. bovis mycoplasma species
Concentration optimization through titration experiments
Specificity assessment against the six recognized strains (M23, Emm, Bat, 1315, M66, M84)
Use of appropriate isotype controls (IgM kappa is recommended)
While direct comparative studies are not provided in the available data, researchers should consider several factors when comparing MYB87 to other mycoplasma detection antibodies:
| Feature | MYB87 Antibody | Other Common Mycoplasma Antibodies |
|---|---|---|
| Specificity | High specificity for 6 M. bovis strains | Variable, often broader reactivity across species |
| Origin | Mouse monoclonal | Mix of monoclonal and polyclonal options |
| Primary Application | ELISA | ELISA, IFA, Western blot |
| Target Recognition | Specific M. bovis strains | Various mycoplasma antigens |
| Host Reactivity | M. bovis specific | Some cross-reactivity with other species |
When selecting between antibodies, researchers should prioritize specificity requirements based on experimental goals. MYB87's high strain specificity makes it particularly valuable for targeted M. bovis detection .
Though MYB87 demonstrates high specificity for the six identified M. bovis strains, researchers should be aware of potential cross-reactivity issues:
Consider testing against closely related Mycoplasma species to confirm specificity
Evaluate potential cross-reactivity with host proteins in complex biological samples
Perform pre-absorption controls if working with samples containing multiple Mycoplasma species
Be aware that the antibody's specificity may not extend to newly identified or genetically divergent M. bovis strains
When designing experiments, include appropriate controls to account for these potential cross-reactivity issues .
When encountering variable or suboptimal results with MYB87 in ELISA applications, consider these methodological adjustments:
Antibody concentration optimization:
Perform a titration series (typically 0.1-1.0 μg/ml for primary antibody)
Test different blocking agents (BSA, casein, or commercial blocking buffers)
Sample preparation refinement:
Ensure proper lysis of mycoplasma cells before assay
Filter samples to remove potential interfering components
Consider pre-clearing samples if background is high
Protocol modifications:
Adjust incubation times and temperatures
Optimize washing steps (frequency and buffer composition)
Test different detection systems (HRP vs. AP conjugates)
Quality control checks:
Verify antibody integrity (avoid repeated freeze-thaw cycles)
Ensure buffers are freshly prepared and at correct pH
Include reference standards on each plate for normalization
For researchers developing comprehensive mycoplasma detection protocols, MYB87 can be integrated into multiplex systems through several approaches:
Bead-based multiplex assays:
Conjugate MYB87 to uniquely identifiable beads
Combine with other mycoplasma-specific antibodies on different bead sets
Analyze using flow cytometry or dedicated multiplex readers
Microarray applications:
Immobilize MYB87 in specific positions on antibody arrays
Create comprehensive mycoplasma detection arrays with multiple antibodies
Develop standardized signal quantification protocols
Sequential ELISA strategies:
Design workflow where positive samples from broad-spectrum assays are tested with MYB87
Develop algorithmic approaches to interpret results across multiple antibodies
Complementary molecular methods:
Use in parallel with PCR-based detection
Correlate antibody reactivity with genetic markers
Create integrated detection protocols combining immunological and molecular techniques
A robust experimental design using MYB87 antibody should include these essential controls:
Positive controls:
Known M. bovis strain M23 samples
Previously validated positive specimens
Recombinant M. bovis antigens (if available)
Negative controls:
Closely related non-M. bovis Mycoplasma species
Samples from uninfected sources
Buffer-only controls
Antibody controls:
Technical controls:
Replicate samples to assess reproducibility
Standard curves for quantitative applications
Inter-assay calibrators for longitudinal studies
Proper implementation of these controls ensures reliable interpretation of results and aids in troubleshooting when unexpected results occur.
Optimizing ELISA protocols for MYB87 requires systematic assessment of multiple parameters:
Coating conditions:
Test different coating buffers (carbonate/bicarbonate, PBS)
Optimize antigen concentration (typically 1-10 μg/ml)
Compare overnight 4°C versus shorter higher-temperature coating
Blocking parameters:
Evaluate different blocking agents (BSA, milk proteins, commercial blockers)
Test blocking times (1-3 hours) and temperatures (RT vs. 37°C)
Antibody parameters:
Titrate MYB87 concentration (starting with manufacturer recommendations)
Optimize incubation time and temperature
Test different diluents to reduce background
Detection system:
Compare direct vs. indirect detection approaches
Optimize secondary antibody concentration
Evaluate substrate development times
Data analysis:
Establish appropriate cutoff values using ROC analysis
Implement standardized calculation methods for quantitative results
Develop normalization strategies for plate-to-plate comparison
When applying MYB87 antibody to clinical or field samples, researchers should address these methodological considerations:
Sample preparation:
Develop standardized collection protocols to ensure consistency
Optimize sample processing methods for different sample types (serum, tissue, milk, etc.)
Establish appropriate storage conditions to maintain sample integrity
Interference mitigation:
Implement pre-clearing steps to remove potential interfering substances
Test for matrix effects by spiking known quantities of target into different sample types
Develop sample-specific dilution protocols to minimize background
Validation requirements:
Establish analytical sensitivity and specificity for each sample type
Determine limits of detection in complex matrices
Compare with reference methods (culture, PCR) for method agreement
Data interpretation:
Develop sample-specific cutoff values
Account for endemic exposure in control populations
Consider the impact of treatment or vaccination on antibody detection
To enhance detection sensitivity when using MYB87 antibody, researchers can implement these methodological approaches:
Sample enrichment techniques:
Concentration of target organisms through centrifugation
Selective culture enrichment before testing
Immunomagnetic separation to isolate target organisms
Signal amplification strategies:
Employ polymeric detection systems (e.g., poly-HRP conjugates)
Implement tyramide signal amplification (TSA)
Utilize biotin-streptavidin systems for enhanced signal
Detection technology enhancements:
Consider chemiluminescent substrates for greater sensitivity
Employ fluorescence-based detection systems
Investigate electrochemiluminescence platforms
Protocol modifications:
Extend sample incubation times at optimized temperatures
Use orbital shakers during incubations to enhance binding kinetics
Implement more stringent washing procedures to reduce background
These approaches can be systematically tested and combined to achieve optimal sensitivity for specific research applications.
The performance of MYB87 antibody may vary considerably across different biological matrices:
| Sample Type | Expected Performance | Special Considerations |
|---|---|---|
| Cell Culture | High sensitivity, minimal matrix effects | Monitor for cross-reactivity with culture components |
| Serum/Plasma | Good performance with appropriate dilution | Pre-clearing may be necessary to remove interfering proteins |
| Milk | Variable depending on quality and processing | Fat content may interfere; centrifugation recommended |
| Tissue Homogenates | Complex matrix requiring optimization | Extraction methods significantly impact performance |
| Environmental Samples | Challenging due to inhibitors | Filtration and purification steps critical |
Researchers should validate the antibody performance in their specific sample types and develop matrix-specific protocols as needed.
For quantitative applications using MYB87 antibody, researchers should consider these methodological approaches:
Standard curve development:
Prepare purified M. bovis at known concentrations
Create log-dilution series covering expected range
Include standards on each plate to account for inter-assay variation
Quantification methods:
Implement four-parameter logistic curve fitting
Establish linear range of detection
Determine lower limit of quantification (LLOQ)
Standardization strategies:
Develop reference materials with assigned values
Implement internal controls for normalization
Consider international standard alignment where available
Validation parameters:
Assess precision (intra and inter-assay CV%)
Determine accuracy through spike-recovery experiments
Evaluate linearity across the measuring range
Proper quantification requires rigorous method validation and consistent application of standardized protocols.
MYB87 antibody offers valuable applications in epidemiological research on M. bovis:
Prevalence studies:
Screening of population samples to determine infection rates
Tracking changes in prevalence over time
Comparing M. bovis distribution across different geographical regions
Outbreak investigation:
Rapid screening of multiple samples during suspected outbreaks
Confirmation of index cases
Tracking the spread through susceptible populations
Strain distribution analysis:
Identifying the prevalence of specific strains (M23, Emm, Bat, 1315, M66, M84)
Correlating strain types with clinical outcomes
Monitoring strain evolution over time
Risk factor assessment:
Testing environmental samples to identify reservoirs
Evaluating transmission pathways
Assessing intervention effectiveness
Researchers should develop standardized testing protocols to ensure data comparability across sites and studies.
Researchers should be aware of these important limitations when using MYB87 antibody:
Specificity constraints:
Technical limitations:
Biological factors:
Cannot distinguish between viable and non-viable organisms
Detection may be affected by stage of infection
Host antibody responses may interfere with direct detection assays
Analytical considerations:
Semi-quantitative rather than absolutely quantitative without extensive validation
May show batch-to-batch variation requiring regular calibration
Limited by the inherent sensitivity of the immunoassay format used
Understanding these limitations is essential for proper experimental design and accurate interpretation of results.