At2g24330 Antibody

The At2g24330 antibody is a polyclonal reagent critical for studying the hypothetical nuclear protein encoded by the Arabidopsis thaliana AT2G24330 locus. Below are structured FAQs addressing key methodological considerations for researchers, informed by technical specifications and functional annotations .

What experimental conditions optimize At2g24330 antibody performance in subcellular localization studies?

• Advanced protocol:

  • Fixation: Use 4% paraformaldehyde for tissue preservation without epitope masking.

  • Permeabilization: 0.1% Triton X-100 for nuclear membrane penetration (target localizes to nucleus ).

  • Blocking: 5% BSA to reduce non-specific binding in immunofluorescence.

  • Controls: Include Arabidopsis root tips (high nuclear density) as positive controls .

How to resolve non-specific bands when using At2g24330 antibody in Western blot?

• Troubleshooting framework:

  • Pre-absorption test: Incubate antibody with excess recombinant protein to confirm target band disappearance .

  • Buffer optimization: Increase NaCl concentration (up to 150 mM) in wash buffers to reduce weak hydrophobic interactions.

  • Secondary antibody validation: Use pre-adsorbed anti-rabbit IgG to exclude cross-reactivity .

What strategies ensure long-term stability of At2g24330 antibody aliquots?

• Storage best practices:

  • Short-term: -20°C with 50% glycerol to prevent freezing .

  • Long-term: -80°C in non-frost-free freezers to avoid temperature fluctuations.

  • Usage: Avoid repeated freeze-thaw cycles; aliquot into single-use volumes .

How to assess At2g24330 antibody cross-reactivity in non-Arabidopsis species?

• Phylogenetic analysis:

  • Sequence alignment: Compare At2g24330 epitope regions with orthologs in Brassica napus or Capsella rubella.

  • Empirical testing: Perform WB on closely related species’ protein extracts.

  • Quantitative ELISA: Measure binding affinity (KD) to confirm species specificity .

What controls are essential for quantitative ELISA using this antibody?

• Critical controls:

  • Blank wells (no primary antibody).

  • Recombinant protein standard curve (0.1–10 ng/mL).

  • Inter-plate calibrators to normalize batch-to-batch variability .