GSTF10 Antibody

Overview of GST Tag Antibodies

GST antibodies are polyclonal or monoclonal reagents designed to detect the 26 kDa GST tag derived from Schistosoma japonicum. These antibodies enable:

• Western blotting of GST-fusion proteins

• Immunoprecipitation for protein interaction studies

• Immunofluorescence to localize tagged proteins in cells

• Affinity purification via glutathione resin-based systems

Key commercial products include:

GSTF10 in Arabidopsis Research

GSTF10 is a plant-specific glutathione S-transferase involved in aliphatic glucosinolate (GSL) biosynthesis and stress responses. Key findings include:

• Role in Glucosinolate Metabolism:

  • GSTF10 works redundantly with GSTU20 to facilitate GSL biosynthesis, with double mutants showing additive reductions in aliphatic GSLs .

  • CRISPR/Cas9-generated gstf10 mutants exhibit altered gene expression networks linked to defense pathways .

• Stress Response:

  • GSTF10 expression is modulated by methyl methanesulfonate (MMS), a DNA-damaging agent, suggesting a role in oxidative stress mitigation .

  • Transient expression of GSTF10-GFP fusion proteins in Nicotiana benthamiana confirmed subcellular localization via anti-GFP antibodies .

Experimental Applications of GST Antibodies in GSTF10 Studies

While no studies specifically developed anti-GSTF10 antibodies, GST tag antibodies have been used indirectly:

• Protein Localization:

  • GSTF10-GFP fusions expressed in plants were detected using anti-GFP antibodies, bypassing the need for isoform-specific GST reagents .

• Enzyme Activity Assays:

  • GST pull-down assays with glutathione resin could isolate GSTF10 fusion proteins for functional studies .

Challenges and Considerations

• Cross-Reactivity: Commercial GST antibodies may cross-react with endogenous GST isoforms across species .

• Specificity Limitations: No antibody exclusively targeting GSTF10 is widely available; most studies rely on genetic mutants or epitope tags (e.g., GFP) .

• Functional Redundancy: GSTF10’s overlapping roles with other GSTs complicate phenotypic analysis in knockout models .

Future Directions

• Development of isoform-specific GSTF10 antibodies could enhance mechanistic studies in plant biochemistry.

• Integrating GSTF10 mutants with multi-omics approaches may clarify its non-redundant functions in stress adaptation .