At1g62880 Antibody

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Description

Gene Function and Context

AtCNIH3 belongs to the CORNICHON HOMOLOG (CNIH) family, which facilitates ER export of membrane proteins. In phosphate starvation responses, related proteins like AtCNIH5 interact with phosphate transporters (AtPHT1s) and regulators (AtPHF1) to optimize nutrient uptake . While At1g62880's specific function remains uncharacterized, its homology to AtCNIH5 suggests potential roles in:

  • ER cargo recognition: Assisting in the trafficking of membrane proteins.

  • Stress adaptation: Modulating responses to nutrient limitations or environmental stress.

  • Protein quality control: Cooperating with chaperones to maintain protein homeostasis.

Antibody Applications in Plant Research

Antibodies targeting AtCNIH3 (At1g62880) could enable:

ApplicationMethodPurpose
Co-immunoprecipitationPull-down assays with ER membrane proteinsIdentify AtCNIH3 interaction partners (e.g., transporters, chaperones) .
ImmunofluorescenceConfocal microscopy of root tissuesLocalize AtCNIH3 to ER or Golgi compartments during phosphate starvation.
Western blottingDetection in membrane fractionsQuantify AtCNIH3 abundance under stress conditions.

Experimental Insights from Homologous Proteins

Studies on AtCNIH5 (At3g12180) provide a blueprint for At1g62880 Antibody utility:

Protein Interactions

ProteinInteractionExperimental Evidence
AtPHF1Physical interactionCo-immunoprecipitation (GFP-AtCNIH5 pull-down) .
AtPHT1;1/2/3ER cargo recognitionIncreased AtPHT1s co-precipitation with AtCNIH5 .

Functional Impact

  • Phosphate starvation: AtCNIH5 enhances ER-to-Golgi trafficking of AtPHT1s, critical for phosphate uptake .

  • Genetic suppression: cnih5 mutants show reduced growth and altered Pi toxicity in pho2 (Pi overaccumulator) .

Antibody Development and Challenges

While no direct reports on At1g62880 Antibody exist, established methods for plant protein antibodies include:

StepMethodConsiderations
Antigen selectionRecombinant AtCNIH3 proteinEnsure solubility and proper folding.
ImmunizationRabbit/mouse injectionsOptimize for high-titer polyclonal or monoclonal antibodies.
ValidationWestern blot, immunoprecipitationConfirm specificity to AtCNIH3 over homologs (e.g., AtCNIH5).

Key challenges include distinguishing AtCNIH3 from closely related CNIH paralogs and addressing low expression levels in non-stressed conditions.

Future Directions

  1. Functional studies: Investigate AtCNIH3’s role in stress responses using CRISPR knockouts.

  2. Cross-species relevance: Compare AtCNIH3 to mammalian CNIH proteins (e.g., Cornichon homologs in ER export).

  3. Therapeutic potential: Explore antibody-based tools for modulating nutrient uptake in crops.

Product Specs

Buffer
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M Phosphate Buffered Saline (PBS), pH 7.4
Form
Liquid
Lead Time
Made-to-order (14-16 weeks)
Synonyms
At1g62880; F16P17.3; Protein cornichon homolog 3
Target Names
At1g62880
Uniprot No.

Target Background

Database Links

KEGG: ath:AT1G62880

STRING: 3702.AT1G62880.1

UniGene: At.70087

Protein Families
Cornichon family
Subcellular Location
Membrane; Multi-pass membrane protein.

Q&A

Experimental Design for At1g62880 Antibody Studies

Q: How should I design an experiment to study the effects of At1g62880 antibody in plant cells? A:

  • Objective: Investigate the role of At1g62880 in plant cellular processes.

  • Materials: Plant cells expressing At1g62880, At1g62880 antibody, control antibodies.

  • Methods:

    • Cell Culture: Maintain plant cells in appropriate media.

    • Antibody Treatment: Treat cells with At1g62880 antibody and control antibodies.

    • Data Collection: Use techniques like Western blotting or immunofluorescence to assess protein expression or localization changes.

    • Data Analysis: Compare treated vs. control groups for significant differences.

Data Contradiction Analysis

Q: How do I resolve contradictions in data when using At1g62880 antibody in different experimental setups? A:

  • Approach:

    • Reproducibility: Repeat experiments to ensure consistency.

    • Method Validation: Verify the specificity and sensitivity of the antibody.

    • Experimental Conditions: Check for variations in cell culture conditions, antibody concentration, or incubation times.

    • Statistical Analysis: Use appropriate statistical tests to evaluate data variability.

Advanced Research Questions: Epitope Mapping

Q: How can I perform epitope mapping for the At1g62880 antibody to understand its binding specificity? A:

  • Techniques:

    • Peptide Arrays: Use peptide arrays to identify specific epitopes recognized by the antibody.

    • Mutagenesis: Perform site-directed mutagenesis to alter potential epitope regions and assess binding changes.

    • Structural Analysis: Use computational tools to predict the structure of the antigen-antibody complex.

Antibody Validation

Q: What methods can I use to validate the specificity of At1g62880 antibody? A:

  • Validation Techniques:

    • Western Blotting: Confirm the antibody binds to the expected protein size.

    • Immunoprecipitation: Verify the antibody can specifically pull down the target protein.

    • Immunofluorescence: Check for specific localization patterns consistent with the protein's known distribution.

Computational Tools for Antibody Design

Q: How can computational tools aid in designing antibodies similar to At1g62880 for research purposes? A:

  • Tools:

    • RosettaAntibodyDesign (RAbD): A framework for designing antibodies by sampling sequence and structure space .

    • In Silico Modeling: Use molecular dynamics to predict antibody-antigen interactions and optimize binding affinities .

Cross-Reactivity Assessment

Q: How do I assess potential cross-reactivity of At1g62880 antibody with other proteins? A:

  • Approach:

    • Protein Arrays: Use protein arrays to screen for binding to other proteins.

    • Bioinformatics Tools: Predict potential cross-reactivity based on sequence similarity.

    • Experimental Controls: Include controls with known non-target proteins to assess specificity.

Optimizing Antibody Concentration

Q: What methods can I use to optimize the concentration of At1g62880 antibody for experimental use? A:

  • Optimization Techniques:

    • Titration Experiments: Perform serial dilutions to find the optimal concentration that yields the best signal-to-noise ratio.

    • Signal Intensity Analysis: Use techniques like Western blotting or ELISA to measure signal intensity at different antibody concentrations.

Stability and Storage Conditions

Q: How should I store and handle At1g62880 antibody to maintain its stability? A:

  • Storage Conditions:

    • Temperature: Store at -20°C or 4°C depending on the antibody formulation.

    • Freeze-Thaw Cycles: Minimize freeze-thaw cycles to prevent degradation.

    • Handling: Avoid exposure to light and moisture.

Troubleshooting Common Issues

Q: What are common issues encountered when using At1g62880 antibody, and how can I troubleshoot them? A:

  • Common Issues:

    • Non-Specific Binding: Increase specificity by optimizing antibody concentration or using blocking agents.

    • Weak Signal: Check antibody storage conditions, optimize concentration, or use signal enhancement techniques.

    • Background Noise: Use appropriate controls and optimize washing conditions.

Future Directions in Antibody Research

Q: What are some future directions in antibody research that could impact studies involving At1g62880 antibody? A:

  • Directions:

    • Rational Design: Use computational tools for designing antibodies with improved specificity and affinity .

    • Single-Domain Antibodies: Explore the use of single-domain antibodies for enhanced stability and specificity .

    • Multispecific Antibodies: Develop antibodies that can target multiple epitopes or proteins simultaneously .

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