CheKine™ Micro PEPC Assay Kit: The Gold Standard for Carbon Metabolism
PEPC: Far More Than a "Plant Enzyme"
Phosphoenolpyruvate carboxylase (PEPC, EC 4.1.1.31) is a metabolic linchpin governing carbon fixation in C4/CAM photosynthesis, bacterial fermentation, and even animal metabolism[reference:110]. Accurate PEPC activity measurement is essential for understanding carbon flux, plant physiology, and metabolic engineering[reference:111].
Why Abbkine KTB1122 Stands Out
| Feature | Abbkine KTB1122 | Traditional PEPC Assays |
|---|---|---|
| Detection Method | Colorimetric (NADH oxidation, λ=340 nm)[reference:112] | Alkaline hydrolysis methods |
| Sample Types | Adherent cells, plant tissues, animal organs, serum, plasma, bacteria[reference:113] | Limited |
| Sample Volume | Microscale—minimal required[reference:114] | Large volumes |
| Sensitivity | Detects minute activity changes[reference:115] | Lower sensitivity |
| Processing Time | Results in minutes[reference:116] | Hours |
| CO₂ Interference | Suppressed by balanced reaction system[reference:117] | High background noise |
| Price | $189 for 48 tests[reference:118] | Often >$300 |
The Catalytic Conversion Principle
KTB1122 leverages the specific catalytic conversion of PEPC, seamlessly linking the PEPC reaction to the oxidation of NADH to enable precise quantification by monitoring the decrease in absorbance at 340 nm[reference:119].
Applications Across Disciplines
- Plant Physiology — Understanding C4/CAM photosynthesis and carbon fixation
- Synthetic Biology — Engineering biofuels and climate-resilient crops[reference:120]
- Microbiology — Studying bacterial fermentation pathways
- Cancer Metabolism — Exploring PEPC's role in metabolic reprogramming[reference:121]
Pro Tips for Success
- Always prep reagents on ice[reference:122]
- Use a sealed plate to prevent atmospheric CO₂ from skewing results[reference:123]
- Prepare samples using the provided optimized extraction buffer[reference:124]
- Transfer to a 96-well UV plate, add master mix, and read at 340 nm immediately[reference:125]
The Bottom Line
For decades, scientists have struggled with cumbersome PEPC assays that demand large sample volumes and deliver high background noise[reference:126]. KTB1122 changes everything—superior sensitivity, dramatically reduced processing time, and cost-effectiveness that makes it accessible to every lab[reference:127].
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