Description
Key facts
Reacts with:Mouse, Rat, Cow, Human,
Assay type:Quantitative
Product details:
250 μg, 500 μg or 750 μg monoclonal antibodies irreversibly crosslinked to protein G-agarose beads which can immunocapture ~13 μg, ~26 μg or ~39 μg respectively of Complex II from heart mitochondria. Isolated mitochondria are available from several species for use as control samples.
The Complex II Immunocapture Kit allows isolation of the succinate dehydrogenase complex from small amounts of tissue. This facilitates subsequent analysis of assembly state, activity and the extent of post translational modifications including oxidative damage that occur with aging. Uses for the Complex II immunocapture kit include research on aging genetic mitochondrial disease, and various cancers due to mutations in this enzyme complex such as paragangliomas and phaeo-chromocytomas.
Note: The immunocapture protocol for this kit requires Abcam detergent lauryl maltoside (ab109857)
/MS910).
**Related products**Review the , or the full to learn about more assays for metabolites, metabolic enzymes, mitochondrial function, and oxidative stress, and also how to assay metabolic function in live cells using your plate reader.
Properties and Storage Information:
Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions-+4°C, Storage information-+4°C
Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Complex II also known as succinate dehydrogenase (SDH) or succinate-ubiquinone oxidoreductase plays an important mechanical role in the mitochondrial electron transport chain. It catalyzes the oxidation of succinate to fumarate while reducing ubiquinone to ubiquinol. The enzyme complex is approximately 140 kDa in mass and resides in the inner mitochondrial membrane. Complex II is expressed in most tissues particularly in high-energy demand tissues such as the heart and skeletal muscles.
Biological function summary
Complex II functions as part of the larger electron transport chain complex and plays a role in the Krebs cycle. It links two critical metabolic pathways converting succinate to fumarate while transferring electrons to the electron transport chain. This makes it integral for proper cellular respiration and energy production. The complex consists of multiple subunits and utilizes co-factors like FAD and iron-sulfur clusters for enzymatic activity. It is also a part of the supercomplexes that optimize the efficiency of oxidative phosphorylation.
Pathways
Complex II plays a significant role in both the citric acid cycle and oxidative phosphorylation. It acts as a connecting bridge between these two pathways facilitating the flow of electrons. Complex II works alongside other proteins such as complex I and complex III to maintain the electron transport chain's function and energy production. Succinate dehydrogenase transfers electrons within the chain directly affecting the generation of ATP by complex V (ATP synthase).
Dysfunction of complex II is associated with mitochondrial diseases and cancers. Mutations or deficiencies in its subunits can lead to conditions like Leigh syndrome and hereditary paraganglioma. These conditions frequently involve other mitochondrial proteins and complexes such as complex I which can exacerbate the electron transport chain dysfunction. In cancers alterations in succinate dehydrogenase activity can result in oncogenic metabolisms by falsely stabilizing hypoxia-inducible factors linking it further with the genetic and metabolic regulation.
