Os05g0447200 Antibody
Product Specs
Constituents: 50% Glycerol, 0.01M Phosphate Buffered Saline (PBS), pH 7.4
Target Background
Q&A
What are the primary applications of Os05g0447200 Antibody in plant biology research?
The Os05g0447200 antibody (Rabbit IgG, reactivity: Oryza sativa subsp. japonica) is primarily used to study auxin transport mechanisms in rice. Its applications include:
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Western blotting: Detecting the ~65 kDa auxin transporter-like protein 2 in denatured protein extracts .
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ELISA: Quantifying protein expression under different hormonal treatments or stress conditions .
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Subcellular localization: Immunolocalization in membrane fractions, though this requires additional validation due to epitope accessibility challenges .
Researchers must confirm the antibody’s specificity using knockout rice lines or siRNA-mediated gene silencing controls . For example, comparative analysis of wild-type and Os05g0447200-knockout plants via western blotting can verify target specificity .
How should researchers validate Os05g0447200 Antibody for specific experimental applications?
Validation requires a multi-step approach:
Table 1: Antibody Validation Strategies
For western blotting, include a loading control (e.g., actin) and test antibody dilution ranges from 1:500 to 1:2000 . In ELISA, assess cross-reactivity with related auxin transporters (e.g., OsPIN1) using competitive binding assays .
What are the critical considerations when selecting a host species for Os05g0447200 Antibody production?
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Species compatibility: Rabbit-derived antibodies minimize cross-reactivity with endogenous rice immunoglobulins .
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Adjuvant selection: Freund’s complete adjuvant induces higher antibody titers but may require ethical approvals .
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Epitope conservation: Ensure immunogen (e.g., residues 150–300 of Os05g0447200) lacks homology with non-target proteins .
How can researchers resolve contradictory results when using Os05g0447200 Antibody across different rice subspecies?
Contradictory signals in indica vs japonica subspecies often arise from:
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Sequence divergence: A 12-amino-acid difference in the epitope region between subspecies .
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Post-translational modifications: Glycosylation variants affecting antibody binding .
Methodological solution:
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Perform BLAST alignment of the immunogen sequence against the target subspecies’ genome .
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Use targeted mass spectrometry to confirm protein identity in conflicting samples .
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Validate with subspecies-specific positive controls (e.g., recombinant protein from indica variants) .
What methodologies exist for quantifying cross-reactivity potential of Os05g0447200 Antibody with homologous auxin transporters?
Table 2: Cross-Reactivity Assessment Workflow
| Step | Method | Target Proteins | Threshold Criteria |
|---|---|---|---|
| 1 | Phylogenetic alignment | OsPIN1, OsAUX1, OsLAX2 | <70% sequence similarity |
| 2 | Peptide microarray screening | Overlapping 15-mer peptides | Signal ratio < 1:5 |
| 3 | Surface plasmon resonance | Recombinant homologs | KD difference > 10-fold |
For conclusive results, combine computational prediction (Step 1) with empirical testing (Steps 2–3) .
What experimental designs minimize batch-to-batch variability when working with polyclonal Os05g0447200 Antibody preparations?
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Standardized immunization protocols: Use identical adjuvant batches and bleed intervals across production cycles .
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Affinity purification: Employ antigen-coupled resin with consistent binding capacity (≥5 mg/mL) .
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Reference sample inclusion: Preserve aliquots from previous batches for longitudinal comparison .
For quantitative studies, normalize antibody concentrations using ELISA against a reference standard (e.g., NIBSC antibody standards) .
