At4g01440 Antibody

Functional Role of AT4G01440 Protein

The AT4G01440 protein belongs to the EamA-like transporter family, which is associated with:

• Membrane transport of small molecules or ions.

• Ubiquitination dynamics under osmotic stress, as identified in root membrane studies .

• Potential involvement in nodulation (symbiotic nitrogen fixation), though direct evidence in Arabidopsis remains limited.

Ubiquitination Profile Under Osmotic Stress

A study analyzing root membrane ubiquitination under short-term osmotic stress identified AT4G01440 as a protein with increased ubiquitination :

Key Observations:

• Ubiquitination Status: AT4G01440 exhibited increased ubiquitination under osmotic stress, suggesting regulatory post-translational modifications.

• Functional Implications: Ubiquitination may modulate its transport activity or stability during stress adaptation.

Antibody Development and Applications

While the provided sources lack direct data on the At4g01440 antibody, insights can be extrapolated from analogous antibodies in plant research:

Typical Uses of Plant Protein Antibodies

• Localization Studies: Subcellular tracking via immunocytochemistry.

• Protein Expression Analysis: Western blotting to assess stress-induced expression changes.

• Interaction Networks: Co-immunoprecipitation to identify binding partners.

Cross-Reactivity Considerations

Antibodies targeting EamA-like proteins often exhibit cross-reactivity with homologs in related species (e.g., Brassica, Glycine max) . Specific validation for AT4G01440 would require:

• Epitope Specificity: Confirming binding to unique peptide regions (e.g., FNEDDQEEDDDEQYKK).

• Stress Condition Testing: Assessing antibody performance under osmotic or salt stress.

Research Gaps and Future Directions

No peer-reviewed studies explicitly detailing the At4g01440 antibody were identified in the provided sources. Critical areas for investigation include:

• Antibody Validation: Specificity checks via knockout mutants.

• Functional Assays: Linking ubiquitination changes to transport activity.

• Comparative Studies: Homolog analysis in crops like soybean or maize for agricultural applications.