Several types of antibodies targeting AT3G08610 are available for research applications:
These antibodies undergo application-specific validation to ensure their performance in the indicated experimental contexts. Each antibody targets different epitopes of the AT3G08610 protein, allowing researchers to select the most appropriate reagent for their specific experimental needs .
Proper storage and handling of AT3G08610 antibodies are crucial for maintaining their activity:
Buffer composition: Most are supplied in a buffer containing:
Freeze-thaw cycles: Avoid repeated freeze-thaw cycles by aliquoting antibodies upon receipt
Working dilutions: Prepare fresh working dilutions immediately before use
Shipping conditions: Antibodies are typically shipped at 4°C but should be transferred to recommended storage temperature immediately upon receipt
Following these guidelines ensures the maintenance of antibody binding efficiency and specificity throughout your experimental timeline, preventing degradation that could compromise experimental results .
AT3G08610 antibodies have been validated for specific applications through rigorous testing:
| Application | Validated Conditions | Expected Results |
|---|---|---|
| ELISA | Typical titer: 1:10,000 | Detection of ~1 ng target protein |
| Western Blot | Dilution range: 1:1000-1:5000 | Detection of expected 7-10 kDa band |
The antibodies are purified using antigen affinity methods to ensure specificity for the target protein . It's important to note that while these are the primary validated applications, researchers have also adapted these antibodies for other techniques including:
Immunohistochemistry (IHC) in plant tissues
Immunoprecipitation (IP) to study protein interactions
Blue Native PAGE to study Complex I assembly
Each application requires specific optimization steps for maximum sensitivity and specificity .
AT3G08610 antibodies provide powerful tools for investigating Complex I assembly mechanisms:
Blue Native PAGE combined with Western blot analysis:
Solubilize mitochondrial membranes with digitonin (1%)
Separate native complexes on 3-12% gradient gels
Transfer to PVDF membranes
Probe with AT3G08610 antibodies to identify assembly intermediates
Compare patterns between wild-type and mutant plants
Co-immunoprecipitation to identify interaction partners:
Crosslink protein complexes in isolated mitochondria
Solubilize with appropriate detergents
Immunoprecipitate with AT3G08610 antibodies
Identify interacting proteins by mass spectrometry
Pulse-chase experiments to study assembly kinetics:
Label newly synthesized proteins with isotopic amino acids
Track incorporation of AT3G08610 into Complex I over time using immunoprecipitation
Analyze by autoradiography or mass spectrometry
Immunogold electron microscopy:
These approaches have revealed that plant Complex I assembly follows distinct pathways from those in animal systems, with unique plant-specific subunits like AT3G08610 playing critical roles in the process.
AT3G08610 antibodies show varying cross-reactivity profiles that should be considered when designing experiments with non-Arabidopsis species:
| Antibody Product | Confirmed Cross-Reactive Species |
|---|---|
| PHY0537S | Arabidopsis thaliana, Brassica napus, Brassica rapa |
| PHY1092S | Broader reactivity: includes Arabidopsis, Brassica species, Solanum tuberosum, Nicotiana tabacum, Sorghum bicolor, Glycine max, Setaria viridis, Panicum virgatum, Zea mays, Gossypium raimondii, Hordeum vulgare, Triticum aestivum, Cucumis sativus, Solanum lycopersicum, Vitis vinifera, Spinacia oleracea, Medicago truncatula, Populus trichocarpa |
When working with species not listed, sequence homology analysis should be performed:
Align the AT3G08610 sequence from Arabidopsis with the orthologous sequence from your species of interest
Assess conservation of epitope regions (especially for monoclonal antibodies)
Validate cross-reactivity experimentally with appropriate controls
Research has demonstrated successful application of these antibodies in comparative studies of respiratory complexes across plant species, revealing evolutionary conservation of Complex I structure despite some species-specific variations .
Rigorous experimental design for AT3G08610 antibody applications requires the following controls:
Positive controls:
Isolated mitochondria from wild-type Arabidopsis
Recombinant AT3G08610 protein (if available)
Negative controls:
Preimmune serum (for polyclonal antibodies)
Isotype control antibodies (for monoclonals)
AT3G08610 knockout/knockdown mutant samples
Secondary antibody-only controls
Specificity controls:
Peptide competition assays using immunizing peptides
Multiple antibodies targeting different epitopes
Comparative signal analysis across tissue types
Technical controls:
Implementation of these controls enables accurate interpretation of experimental results and validation of antibody specificity, which is particularly important when studying proteins like AT3G08610 that exist within large complexes with structural similarities to other mitochondrial components.
Understanding AT3G08610 expression patterns provides context for antibody-based experiments:
| Developmental Stage | Relative Expression | Technique for Detection |
|---|---|---|
| Seeds (5 dpa) | Low/negligible | Western blot, RT-qPCR |
| Seeds (8-11 dpa) | Moderate | Western blot, RT-qPCR |
| Seeds (13-16 dpa) | High | Western blot, RT-qPCR, Proteomics |
| Mature leaves | Moderate | Western blot, RT-qPCR |
| Roots | Variable (stress-dependent) | Western blot, RT-qPCR |
Expression is significantly modulated by:
Oxidative stress (2-3 fold increase)
Cold stress (1.5-2 fold increase)
Nutrient limitation (nitrogen: decreased; phosphorus: variable)
AT3G08610 antibodies have been instrumental in revealing these expression patterns, which correlate with increased respiratory demands during seed development and stress responses. The antibodies can detect both the basal and induced levels of the protein, making them valuable tools for studying mitochondrial adaptation to environmental conditions .
For optimal Western blot results with AT3G08610 antibodies:
Sample preparation:
Isolate mitochondria using differential centrifugation
Resuspend in buffer containing 0.3M sucrose, 10mM TES, 10mM MOPS, pH 7.2
Add protease inhibitor cocktail
Solubilize with 1% digitonin or 1% n-dodecyl-β-D-maltoside
Gel electrophoresis:
Use Tricine-SDS-PAGE (16%) for better resolution of small proteins
Load 10-20 μg mitochondrial protein per lane
Include molecular weight markers covering 5-15 kDa range
Transfer conditions:
Transfer to PVDF membranes (0.2 μm pore size)
Use semi-dry transfer: 1.5 mA/cm² for 45 minutes
Transfer buffer: 25mM Tris, 192mM glycine, 20% methanol, 0.02% SDS
Antibody incubation:
Block with 5% non-fat milk in TBS-T for 1 hour at room temperature
Primary antibody dilution: 1:2000 in 2.5% milk/TBS-T
Incubate overnight at 4°C
Wash 3×15 minutes with TBS-T
Secondary antibody: 1:5000 HRP-conjugated anti-rabbit/mouse IgG
Detection:
This protocol has been optimized based on research addressing the challenges of detecting small mitochondrial proteins like AT3G08610, which can otherwise be difficult to resolve and visualize.
AT3G08610 antibodies provide valuable tools for studying mitochondrial stress responses:
Monitoring protein accumulation during UPR:
Treat plants with electron transport inhibitors (antimycin A, rotenone)
Isolate mitochondria at different time points
Quantify AT3G08610 levels by Western blot
Compare with expression of known UPR marker genes
Subcellular localization during stress:
Perform immunofluorescence microscopy with AT3G08610 antibodies
Co-stain with markers for different mitochondrial subcompartments
Analyze changes in localization pattern during stress conditions
Interaction studies during UPR:
Perform co-immunoprecipitation with AT3G08610 antibodies
Compare interacting partners under normal vs. stress conditions
Identify stress-specific interactions
Research using this approach has shown that Complex I subunits like AT3G08610 exhibit altered abundance and interaction patterns during mitochondrial stress, suggesting regulatory roles beyond their structural functions in electron transport .
Recombinant antibody technology has significantly improved AT3G08610 antibody development:
Enhancement approaches:
Generation of single-chain variable fragments (scFv)
Production of camelid-derived single-domain antibodies (nanobodies)
Creation of bispecific antibodies targeting multiple epitopes
Advantages for plant mitochondrial research:
Increased specificity for closely related Complex I subunits
Better penetration into densely packed mitochondrial membranes
Reduced background in immunolocalization studies
Enhanced stability under various experimental conditions
Implementation methods:
Phage display selection against purified AT3G08610 protein
Yeast surface display for affinity maturation
Bacterial or plant-based expression systems for antibody production
Studies have demonstrated that nanobodies derived from camelid immunization show particularly strong potential for recognizing AT3G08610 in its native conformation within Complex I, as their small size allows access to epitopes that might be sterically hindered from conventional antibodies .
Techniques from therapeutic antibody development can be adapted for validating research antibodies:
Electrochemiluminescence-based binding assays:
Immobilize recombinant AT3G08610 on plates
Test antibody binding with ECL detection
Quantify binding affinity and specificity
Compare different antibody lots for consistency
Epitope analysis:
Generate truncated fragments of AT3G08610
Determine binding to different regions
Map precise epitopes using peptide arrays
Verify accessibility of epitopes in native protein
Neutralization assays:
Test antibody inhibition of AT3G08610 function in vitro
Use functional assays like NADH oxidation activity
Quantify degree of inhibition at different antibody concentrations
This methodological crossover from therapeutic antibody validation to research antibody characterization provides rigorous quality control measures that ensure reproducible results in plant mitochondrial research .