The FBA3 Antibody (PHY7224S) is designed to detect and study the FBA3 enzyme, which catalyzes the cleavage of fructose-1,6-bisphosphate in the Calvin cycle and glycolysis. It is widely used in plant biology research to investigate photosynthesis, carbohydrate metabolism, and stress responses .
The antibody exhibits broad cross-reactivity due to sequence conservation among plant FBA isoforms:
| Species/Protein | Homology to FBA3 Immunogen | Cross-Reactivity Confirmed |
|---|---|---|
| FBA1 (AT2G21330) | 90% (18/20 residues) | Yes |
| FBA2 (AT4G38970) | 80% (16/20 residues) | Yes |
| Spinacia oleracea | Not specified | Yes (via Western blot) |
| Vitis vinifera | Not specified | Yes |
This cross-reactivity enables comparative studies of aldolase isoforms across plant species .
Validated for use in:
Western blotting: Detects FBA3 in lysates from Arabidopsis, rice, and soybean.
Immunohistochemistry (IHC): Localizes FBA3 in chloroplasts of plant tissues.
ELISA: Quantifies FBA3 expression under stress conditions (e.g., drought, salinity) .
Specificity Limitations: Cross-reactivity with FBA1/FBA2 requires careful experimental controls.
Storage Stability: Lyophilized format ensures long-term stability but mandates strict adherence to storage protocols .
While direct studies using this antibody are not detailed in public literature, its design supports investigations into:
Metabolic adaptation in crops under climate stress.
Evolutionary conservation of aldolase function in plants.