The At1g60750 antibody targets a protein encoded by the At1g60750 gene in Arabidopsis thaliana, also known as thale cress . The At1g60750 gene encodes for a protein belonging to the NAD(P)-linked oxidoreductase superfamily . Antibodies, also known as immunoglobulins (Ig), are large, Y-shaped proteins used by the immune system to identify and neutralize foreign objects like bacteria and viruses .
Antibodies are composed of four polypeptide chains: two heavy chains and two light chains, linked by disulfide bonds to form a Y-shape . Each chain consists of domains, which are sequences of approximately 110 amino acids . Light chains have one variable domain (V$${L}$$) and one constant domain (C$${L}$$), while heavy chains have one variable domain (V$${H}$$) and three to four constant domains (C$${H}$$ .
The tips of the Y shape are the antigen-binding fragments (Fab), which bind to specific epitopes (antigenic determinants) on an antigen . The variable regions (V regions) of the heavy and light chains in the Fab region provide the specificity for antigen binding . The fragment crystallizable (Fc) region, the stem of the Y shape, becomes biologically active after the Fab region binds to an antigen, triggering activities such as activating complement pathways or binding to receptors on phagocytes to promote adaptive immunity .
| Antibody Class | Heavy Chain Class | Molecular Weight (kDa) | % Total Serum Antibody | Functional Properties |
|---|---|---|---|---|
| IgM | μ (mu) | 900 | ||
| IgG | γ (gamma) | 150 | 80 | |
| IgA | α (alpha) | 385 | 13 | |
| IgE | ε (epsilon) | 200 | 0.002 | |
| IgD | δ (delta) | 180 | 1 |
The At1g60750 gene, found in Arabidopsis thaliana, has the Entrez Gene ID 3767587 . It is also known by the synonyms F8A5.26 and F8A5_26 . The gene encodes a protein that belongs to the NAD(P)-linked oxidoreductase superfamily . Oxidoreductases are enzymes that catalyze oxidation-reduction reactions, which are crucial in various metabolic pathways .
Antibodies are essential tools in biological research for a variety of applications:
Identifying and purifying proteins: Antibodies can be used to detect and isolate specific proteins from complex mixtures .
Studying protein function: By binding to a protein, antibodies can inhibit its activity or alter its interactions, allowing researchers to study its function .
Investigating disease mechanisms: Antibodies can be used to study the role of specific proteins in disease development and progression .
Developing new therapies: Antibodies can be engineered to target and neutralize disease-causing agents or to deliver therapeutic payloads to specific cells .
Diagnostics: Antibodies are used in diagnostic assays to detect the presence of specific antigens, indicating infection or disease .
AT1g60750 encodes an oxidoreductase/aldo-keto reductase protein in Arabidopsis thaliana (Mouse-ear cress) . Researchers use antibodies against this protein to study its expression, localization, and function in various experimental contexts, particularly in plant stress response studies. As an oxidoreductase, this protein may play roles in redox reactions that are critical for plant metabolism and stress responses . Antibodies targeting AT1g60750 enable detection of the protein in complex samples such as plant tissue extracts, allowing researchers to investigate its regulation and function under different conditions.
To determine suitability, evaluate these key parameters:
Target validation: Confirm the antibody recognizes AT1g60750 specifically, with minimal cross-reactivity to related proteins .
Application specificity: Verify the antibody is validated for your specific application (Western blotting, immunoprecipitation, immunofluorescence, etc.) .
Species reactivity: Ensure the antibody recognizes AT1g60750 in your experimental organism (most AT1g60750 antibodies are specific to Arabidopsis thaliana) .
Experimental validation: Review antibody characterization data, including positive and negative controls, and perform your own validation experiments .
The suitability assessment should include examining published literature where the antibody has been used successfully for similar applications .
Comprehensive antibody validation should include:
| Validation Method | Procedure | Expected Outcome |
|---|---|---|
| Western blot | Run protein extracts from wild-type and knockout/knockdown plants | Single band at expected MW (~70-95 kDa) in wild-type, absent or reduced in knockout/knockdown |
| Immunoprecipitation | Pull-down AT1g60750 from plant extracts, confirm by mass spectrometry | Enrichment of AT1g60750 peptides |
| Immunostaining | Compare localization in wild-type vs. knockout tissues | Specific staining pattern in wild-type absent in knockout |
| Recombinant protein control | Test antibody against purified recombinant AT1g60750 | Positive signal with dose-dependent response |
| Cross-reactivity assessment | Test against related plant proteins | Minimal or no reactivity with non-target proteins |
These validation steps are essential for ensuring experimental reproducibility and reliable results . Document all validation experiments thoroughly for future reference.
Polyclonal Antibodies:
Recognize multiple epitopes on AT1g60750
Generally provide higher sensitivity for detection
Exhibit batch-to-batch variability
Better for applications where protein conformation may vary (such as detecting denatured proteins)
Monoclonal Antibodies:
Recognize a single epitope on AT1g60750
Provide consistent reproducibility between experiments
May have limited detection capability if the target epitope is masked
Preferable for quantitative comparative studies requiring high specificity
For AT1g60750 research, polyclonal antibodies often provide better detection in plant tissues due to their ability to recognize multiple epitopes, but monoclonal antibodies may offer advantages when absolute specificity is required, particularly when discriminating between closely related plant oxidoreductases .
Optimize Western blot conditions with AT1g60750 antibody:
Sample preparation:
Extract proteins from plant tissues using buffer containing 50 mM Tris-HCl (pH 7.5), 150 mM NaCl, 1% Triton X-100, and protease inhibitors
Heat samples at 95°C for 5 minutes in sample buffer containing SDS and DTT
Gel electrophoresis:
Use 10-12% polyacrylamide gels for optimal separation
Load positive control (recombinant AT1g60750) alongside samples
Transfer and blocking:
Transfer to PVDF membrane at 100V for 1 hour
Block with 5% non-fat milk in TBST for 1 hour at room temperature
Antibody incubation:
Primary antibody: Dilute AT1g60750 antibody 1:1000 in blocking solution, incubate overnight at 4°C
Secondary antibody: Anti-species IgG-HRP at 1:5000 for 1 hour at room temperature
Detection:
Include appropriate controls: wild-type plant extract, AT1g60750 knockout/knockdown plant extract, and pre-immune serum control to verify specificity.
For successful immunoprecipitation of AT1g60750:
Pre-clearing step:
Incubate plant lysate with protein A/G beads for 1 hour to reduce non-specific binding
Antibody binding:
Add 2-5 μg of AT1g60750 antibody per 1 mg of total protein
Incubate at 4°C overnight with gentle rotation
Capturing antibody-antigen complexes:
Add pre-washed protein A/G beads (50 μL slurry)
Incubate for 2-4 hours at 4°C with gentle rotation
Washing:
Use stringent washing with high-salt buffer (300-500 mM NaCl) to reduce non-specific interactions
Perform at least 4 washes
Elution and analysis:
Elute with SDS sample buffer or low pH glycine buffer
Analyze by Western blot or mass spectrometry
Include an isotype control antibody in parallel experiments to identify non-specific protein interactions .
Cross-reactivity challenges can be addressed through:
Epitope mapping:
Identify the specific sequence recognized by the antibody
Compare with similar proteins using bioinformatics tools to identify potential cross-reactive proteins
Absorption controls:
Pre-absorb antibody with recombinant AT1g60750 protein
If signal is eliminated, it confirms specificity to the target
Knockout/knockdown validation:
Test antibody in AT1g60750 knockout/knockdown lines
Signal should be absent or significantly reduced
Comparative analysis:
Test multiple antibodies targeting different epitopes of AT1g60750
Concordant results increase confidence in specificity
Stringent washing:
Increase washing steps and detergent concentration to reduce non-specific binding
If cross-reactivity persists, consider using genetic approaches (tagged AT1g60750 constructs) as an alternative method for protein detection .
For stress-related studies with AT1g60750 antibody:
Protein modifications:
Stress conditions may induce post-translational modifications that affect antibody recognition
Consider using antibodies recognizing different epitopes to ensure detection
Expression level variation:
Tissue specificity:
Temporal dynamics:
Control selection:
A multi-pronged approach combining protein studies (using antibodies) with transcriptomic analysis will provide more comprehensive insights into AT1g60750's role in stress response.
To ensure reproducibility:
Antibody characterization:
Standardized protocols:
Maintain detailed standard operating procedures (SOPs)
Document all experimental conditions, including incubation times, temperatures, and buffer compositions
Quality controls:
Include consistent positive and negative controls across experiments
Use titration curves to determine optimal antibody concentration for each batch
Quantitative analysis:
Employ quantitative methods with appropriate statistical analysis
Include technical and biological replicates (minimum n=3)
Validation across antibody lots:
Test new antibody lots against previous lots before replacing
Maintain reference samples for comparison
Proper documentation and transparent reporting are essential for experimental reproducibility. Consider pre-registering experimental protocols and sharing detailed methods through repositories .
For integrated multi-omics analysis:
Correlative analysis:
Compare protein levels (detected by AT1g60750 antibody) with transcript levels of the gene
Analyze discrepancies that may indicate post-transcriptional regulation
Spatial and temporal mapping:
Combine immunolocalization data with transcriptomic data from the same tissues/timepoints
Create comprehensive expression maps across development or stress responses
Protein interaction networks:
Use immunoprecipitation with AT1g60750 antibody followed by mass spectrometry to identify interacting partners
Integrate with known protein-protein interaction databases
Functional validation:
Data integration tools:
Use specialized software for multi-omics data integration
Apply statistical methods appropriate for handling heterogeneous data types
This integrated approach provides a more comprehensive understanding of AT1g60750 function in plant biology than any single method alone .