Target: F4/80 (EMR1), a macrophage-specific surface glycoprotein.
Applications:
| Parameter | Data |
|---|---|
| Clone | 521204 |
| Host Species | Rat |
| Isotype | IgG2A |
| Purification | Protein A/G from hybridoma culture |
| Storage Stability | 12 months at -20°C to -70°C; 1 month at 2–8°C post-reconstitution |
Target: CD80 (B7-1), a co-stimulatory molecule on antigen-presenting cells.
Applications:
80R reduced SARS-CoV lung titers by >4 logs in mice at 12.5 mg/kg .
17T2 neutralizes BA.2.86 with IC₅₀ < 0.1 µg/mL via cryo-EM-confirmed RBD binding .
Target: Overexpressed epidermal growth factor receptor in tumors.
Binds amplified/overexpressed EGFR without reacting to normal tissues .
Reactivity observed in 30–40% of glioblastomas and epithelial cancers .
Nomenclature Conflicts: "mu" may indicate murine origin, while "g80" could reference glycosylation sites or clone IDs.
Validation Steps:
Epitope mapping (e.g., SPR or BLI for affinity measurements).
Functional assays (neutralization, opsonization).
Cross-reactivity screening using protein microarrays.
KEGG: spo:SPBC1D7.03
STRING: 4896.SPBC1D7.03.1
The mug80 protein (UniProt accession O14336) is a specific protein found in Schizosaccharomyces pombe (fission yeast), a model organism widely used in molecular and cellular biology research. The antibody against mug80 provides researchers with a tool for detecting and studying this protein in experimental settings. The antibody is particularly valuable for investigating cellular processes in S. pombe, which serves as an important model for studying eukaryotic cell biology, cell cycle regulation, and gene expression patterns .
Unlike some other research antibodies such as the F4/80 antibody that targets macrophage populations in mice, the mug80 antibody is highly specific to S. pombe, making it a specialized research reagent for studies focusing on this particular model organism .
The mug80 antibody has been validated for several key research applications:
Western Blotting (WB): For detection and semi-quantitative analysis of mug80 protein in cell lysates from S. pombe
Enzyme-Linked Immunosorbent Assay (ELISA): For quantitative measurement of mug80 protein in various experimental preparations
These applications allow researchers to investigate protein expression, localization, and potential interactions involving mug80 in S. pombe. When designing experiments, researchers should ensure proper identification of the antigen through appropriate controls .
Unlike more broadly applicable antibodies like monoclonal antibody A-80 (which recognizes tumor-associated cytoplasmic mucin-type glycoproteins across multiple tissue types), mug80 antibody has a narrower but more specialized application range focused on S. pombe research .
To maintain optimal activity of the mug80 antibody, researchers should adhere to the following storage guidelines:
Store at -20°C or -80°C upon receipt
Avoid repeated freeze-thaw cycles, which can denature the antibody and reduce its efficacy
The antibody is supplied in a stabilizing buffer containing 50% glycerol, 0.01M PBS (pH 7.4), and 0.03% Proclin 300 as a preservative
This is consistent with general principles of antibody storage. For comparison, other research antibodies like the F4/80 monoclonal antibody also require similar cold storage conditions to maintain their specificity and binding efficacy .
Proper experimental design with mug80 antibody requires careful consideration of controls:
| Control Type | Purpose | Implementation |
|---|---|---|
| Negative Control | Determine background/non-specific binding | Use non-transfected S. pombe or strains lacking mug80 expression |
| Positive Control | Confirm antibody functionality | Use recombinant mug80 protein or known mug80-expressing samples |
| Isotype Control | Account for non-specific binding | Use rabbit IgG (same isotype) in parallel experiments |
| Loading Control | Normalize protein quantification in WB | Use housekeeping proteins specific to S. pombe |
When interpreting results, researchers should compare experimental samples with these controls to distinguish genuine signals from artifacts. This approach is consistent with best practices used with other research antibodies, such as those used in studying human monoclonal antibodies in therapeutic applications .
Western blot optimization for mug80 antibody should follow these methodological recommendations:
Sample Preparation:
Extract proteins from S. pombe using mild detergents to preserve epitope structure
Add protease inhibitors to prevent protein degradation
Heat samples at 95°C for 5 minutes in loading buffer before gel loading
Electrophoresis and Transfer:
Use 10-12% SDS-PAGE gels for optimal separation
Transfer proteins to PVDF or nitrocellulose membranes at 100V for 60-90 minutes
Blocking and Antibody Incubation:
This protocol is based on established principles similar to those used with other polyclonal antibodies, though specific optimization may be required for the unique characteristics of mug80 detection .
Integration of mug80 antibody-based detection with multi-omics approaches can provide comprehensive insights into S. pombe biology:
Chromatin Immunoprecipitation (ChIP) Combined with Sequencing:
If mug80 has DNA-binding properties, ChIP-seq can identify genomic binding sites
Use mug80 antibody to pull down protein-DNA complexes
Sequence associated DNA to map interaction sites within the genome
Immunoprecipitation Coupled with Mass Spectrometry (IP-MS):
Use mug80 antibody for immunoprecipitation of protein complexes
Analyze via mass spectrometry to identify interaction partners
Map protein-protein interaction networks involving mug80
Integration with Transcriptomic Data:
This integrated approach shares conceptual similarities with methods used to study antibody-antigen interactions in other research contexts, such as the characterization of structure factors in antibody solutions .
When encountering non-specific binding with mug80 antibody, researchers should systematically address the issue:
| Problem | Potential Cause | Troubleshooting Approach |
|---|---|---|
| Multiple bands in Western blot | Cross-reactivity or protein degradation | 1. Increase washing stringency 2. Optimize antibody dilution 3. Use fresher samples with added protease inhibitors |
| High background in ELISA | Insufficient blocking or wash steps | 1. Extend blocking time 2. Use alternative blocking agents 3. Increase wash buffer stringency |
| False positives | Fc receptor binding | 1. Pre-block with species-specific serum 2. Use F(ab')2 fragments instead of whole IgG 3. Include additional blocking proteins |
Verification of results should include complementary techniques such as RNA interference or genetic knockouts to confirm target specificity, similar to approaches used in therapeutic antibody development .
Ensuring experimental reproducibility requires careful assessment of batch-to-batch antibody variation:
Quantitative Benchmarking Protocols:
Test each new batch against a reference standard
Perform titration experiments to determine effective working dilutions
Compare immunoreactivity patterns in well-characterized samples
Quality Control Metrics:
Specificity: Confirm single band at expected molecular weight in Western blots
Sensitivity: Determine limit of detection using standard curves
Reproducibility: Compare results across technical and biological replicates
Documentation Practices:
These quality control measures reflect general principles applied in antibody research, including those used in therapeutic monoclonal antibody development .
Researchers should understand the relative advantages of different detection methodologies:
| Detection Method | Advantages | Limitations | Complementarity with mug80 Antibody |
|---|---|---|---|
| mug80 Antibody Detection | - Specific protein detection - Applicable to various sample types - Can detect post-translational modifications | - Dependent on antibody quality - May have cross-reactivity issues - Semi-quantitative without standards | Primary method for protein detection |
| GFP/Fluorescent Protein Tagging | - Live cell visualization - Real-time dynamics - No fixation artifacts | - Tag may affect protein function - Genetic modification required - Autofluorescence issues | Validate antibody detection with GFP-tagged versions |
| Mass Spectrometry | - Unbiased detection - Absolute quantification possible - Multiple protein detection | - Complex sample preparation - Expensive equipment - Limited for low-abundance proteins | Use antibody for validation of MS findings |
| RNA-based Methods (RT-PCR, RNA-seq) | - No antibody required - Highly sensitive - Genome-wide analysis possible | - Measures mRNA, not protein - Post-transcriptional regulation missed - No protein modification information | Correlate mRNA with protein levels detected by antibody |
This comparative analysis helps researchers choose appropriate methods or combinations based on their specific research questions and available resources .
Comparative analysis across different yeast proteins can provide valuable contextual insights:
Evolutionary Conservation Analysis:
Compare mug80 function and expression patterns with homologs in other yeast species
Use antibodies targeting related proteins in S. cerevisiae or other model organisms
Identify conserved vs. species-specific aspects of protein function
Methodological Cross-Referencing:
Adapt successful experimental designs from studies of well-characterized yeast proteins
Apply techniques optimized for detection of other low-abundance yeast proteins
Benchmark sensitivity and specificity relative to established antibody-based assays
Functional Network Integration:
This approach shares conceptual similarities with methods used to study antibody targets in other organisms, such as the monoclonal antibody F4/80, which has been extensively characterized in mouse macrophage research .
Emerging antibody technologies offer new possibilities for mug80 research:
Single-Domain Antibody Fragments:
Smaller size allows better penetration in fixed cells
Potential for improved access to sterically hindered epitopes
Enhanced stability under various experimental conditions
Recombinant Antibody Engineering:
Development of highly specific recombinant anti-mug80 antibodies
Creation of bispecific antibodies for co-detection with interaction partners
Modification of Fc regions to reduce background in specific applications
Site-Specific Conjugation Methods:
These technological advances could significantly expand the research applications of anti-mug80 antibodies, similar to how advances in monoclonal antibody technology have enabled new therapeutic applications in infectious disease research .
Despite advances in antibody technology, several methodological challenges persist:
Detection Sensitivity Limitations:
Low natural abundance may require signal amplification methods
Need for subcellular fractionation to concentrate proteins from specific compartments
Development of more sensitive detection chemistries for Western blotting and ELISA
Temporal and Spatial Resolution:
Capturing transient expression or localization changes during cell cycle
Distinguishing between different post-translationally modified forms
Achieving single-cell resolution in heterogeneous populations
Cross-Platform Data Integration:
Addressing these challenges will require both technological innovations and improved experimental designs, similar to approaches being developed for studying complex protein systems in therapeutic antibody research .