CheKine™ Micro SDH Activity Assay Kit: The Ultimate Mitochondrial Function Marker
SDH: The Only Enzyme Participating in Both the TCA Cycle and the Electron Transport Chain
Succinate dehydrogenase (SDH) is a unique enzyme that sits at the crossroads of two major metabolic pathways: it catalyzes the oxidation of succinate to fumarate in the TCA cycle while simultaneously transferring electrons to ubiquinone in the electron transport chain (Complex II) . SDH activity is a direct reflection of mitochondrial function and respiratory capacity.
Why Abbkine KTB1230 Delivers Superior Results
| Feature | Abbkine KTB1230 | Traditional SDH Assays |
|---|---|---|
| Detection Principle | Colorimetric—measures succinate oxidation | Often complex; requires specialized equipment |
| Sample Types | Animal tissues, plant tissues, cells, mitochondria | Limited |
| Sensitivity | High; detects mitochondrial dysfunction early | Variable |
| Protocol | Simple, convenient, microplate-compatible | Cumbersome |
| Throughput | 96-well format for high-throughput screening | Lower |
| Clinical Relevance | Gold-standard mitochondrial marker | Varies |
The Gold-Standard Mitochondrial Marker
SDH is widely used as a marker enzyme for mitochondrial content—a higher SDH activity indicates greater mitochondrial mass. But beyond serving as a loading control, SDH activity directly reflects the functional capacity of the respiratory chain.
Applications Across Research Fields
- Mitochondrial Biology — assessing mitochondrial health and function
- Neurodegenerative Disease — SDH deficiency is implicated in Parkinson's, Huntington's, and Leigh syndrome
- Cancer Metabolism — understanding metabolic rewiring in tumors
- Cardiovascular Research — evaluating cardiac mitochondrial function in heart failure
- Aging Research — tracking age-related mitochondrial decline
- Toxicology — assessing mitochondrial toxins and drug-induced injury
- Plant Science — evaluating stress responses in plant mitochondria
Critical Sample Handling Tips
- Use fresh samples for optimal SDH activity
- Keep samples on ice during preparation to prevent enzyme denaturation
- Isolate mitochondria for tissue-specific SDH measurement
- Avoid repeated freeze-thaw cycles
The Bottom Line
For researchers investigating mitochondrial function, metabolic health, or bioenergetics, KTB1230 provides a validated, reliable, and easy-to-use SDH activity assay that delivers publication-ready data.
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