Abcam, ab110174, Pyruvate dehydrogenase (PDH) Profiling ELISA Kit

Size: 96Test
Pyruvate dehydrogenase (PDH) Profiling ELISA Kit is a Sandwich (qualitative) ELISA for the measurement of Pyruvate dehydrogenase (PDH) Profiling in in Cell/Tissue Extracts samples from a wide range of species.
Key facts
Detection method:Colorimetric,
Sample types:Cell culture extracts, Tissue,
Reacts with:Mouse, Rat, Cow, Human,
Assay type:Sandwich (qualitative),
Assay Platform:Microplate

Product details:
Abcam's Pyruvate dehydrogenase (PDH) in vitro ProfilingELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the measurement of Pyruvate dehydrogenase (PDH) in Human, bovine, mouse, and rat whole tissue or cell lysate samples.
Capture antibodies are pre-coated in the wells of modular microplates, which can be broken into 8-well strips. This assay is a "sandwich" ELISA, where the PDH enzyme is purified and immobilized by an anti-PDH capture antibody pre-coated in the microplate wells. The amount of captured PDH is determined by adding a second (detector) anti-PDH antibody which binds to the captured PDH hat a different epitope. This is followed by binding of an HRP conjugated goat anti-mouse antibody that binds the detector anti-PDH antibody. The detector-bound HRP then changes the colorless HRP development solution to blue and the color intensity (absorbance) is proportional to the amount of PDH captured. All of our microplate assays utilize our highly-validated immunocapture antibodies, which are able to capture large, multi-subunit enzyme complexes in their fully intact state.
5X Stabilizer should be stored at -20°C. Remainder of kit should be stored at 4°C. When stored as recommended the kit is stable for 6 months.
PDH is the key regulatory enzyme of cellular metabolism because it links the TCA cycle and subsequent oxidative phosphorylation with glycolysis and gluconeogenesis as well as with both lipid and amino acid metabolism. PDH activity is regulated primarily by PDK-dependent phosphorylation and PDP-dependent dephosphorylation of PDH. Phosphorylation inactivates PDH whereas dephosphorylation activates PDH. Phosphorylation occurs at Serines 232, 293, and 300 of the human E1α subunits.

Properties and Storage Information:
Shipped at conditions-Dry Ice, Appropriate short-term storage conditions-Multi, Appropriate long-term storage conditions-Multi, Storage information-Please refer to protocols

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Pyruvate dehydrogenase (PDH) is an enzyme complex also known as the pyruvate dehydrogenase complex (PDC) or PDH complex. It is a multi-enzyme structure with a mass on the order of megadaltons and plays an important role in cellular energy metabolism. Situated in the mitochondrial matrix pyruvate dehydrogenase converts pyruvate into acetyl-CoA through oxidative decarboxylation. This conversion releases one molecule of CO₂ and reduces NAD+ to NADH. The complex includes three core enzymes: E1 (pyruvate dehydrogenase) E2 (dihydrolipoamide acetyltransferase) and E3 (dihydrolipoamide dehydrogenase).
Biological function summary
The actions of pyruvate dehydrogenase serve as a bridge between glycolysis and the tricarboxylic acid (TCA) cycle. Pyruvate derived from glucose is transformed into acetyl-CoA before entering the TCA cycle for further energy extraction. The PDH complex ensures efficient energy production by tightly regulating the flow of carbon into the TCA cycle. Regulation occurs through phosphorylation by specific PDH kinases which inactivate E1. This mechanism integrates signals from energy status and substrates availability modulating the carbohydrate metabolism.
Pathways
Pyruvate dehydrogenase is a central player in cellular respiration and energy metabolism. It connects glycolytic pathways with the TCA cycle facilitating energy conversion in eukaryotic cells. Key related proteins involve pyruvate kinase (which generates pyruvate) and citrate synthase (which uses acetyl-CoA) ensuring synchronized activity between upstream and downstream metabolic processes. The proper function of PDH activity is necessary for maintaining the metabolic flow with the PDH complex serving a gating role in the energy pathways.
Pyruvate dehydrogenase deficiency results in metabolic challenges as the inability to convert pyruvate efficiently causes an increase in lactate levels. This condition results in lactic acidosis and severe neurological dysfunction. Furthermore alterations in PDH activity are observed in various forms of cancer as cancer cells often rely on aerobic glycolysis (Warburg effect) rather than complete oxidation of glucose. In this context the PDH protein interacts with oncogenic pathways highlighting its role in tumor metabolism and potential therapeutic targeting.