Nicotinamide Adenine Dinucleotide
Nicotinamide Adenine Dinucleotide - Related Videos
05:58
A Novel Nicotinamide Adenine Dinucleotide Correction Method for Intracellular Ca2+ Measurement with Fura-2-Analog in Live Cells
0 Views •
2019
Due to the spectral overlapping of the excitation and emission wavelengths of NADH and fura-2 analogs, the signal interference from both chemicals in live cells is unavoidable during quantitative measurement of [Ca2+]. Thus, a novel online correction method of NADH signal interference to measure [Ca2+] was developed.
01:24
Electron Carriers
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2019
Electron carriers can be thought of as electron shuttles. These compounds can easily accept electrons (i.e., be reduced) or lose them (i.e., be oxidized). They play an essential role in energy production because cellular respiration is contingent on the flow of electrons. Over the many stages of cellular respiration, glucose breaks down into carbon dioxide and water. Electron carriers pick up electrons lost by glucose in these reactions, temporarily storing and releasing them into the electron...
01:28
Electron Transport Chains
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2019
The final stage of cellular respiration is oxidative phosphorylation that consists of two steps: the electron transport chain and chemiosmosis. The electron transport chain is a set of proteins found in the inner mitochondrial membrane in eukaryotic cells. Its primary function is to establish a proton gradient that can be used during chemiosmosis to produce ATP and generate electron carriers, such as NAD+ and FAD, that are used in glycolysis and the citric acid cycle. The ETC is comprised of...
09:14
DamID-seq: Genome-wide Mapping of Protein-DNA Interactions by High Throughput Sequencing of Adenine-methylated DNA Fragments
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Cited by 21 •
2016
We describe herein an assay by coupling DNA adenine methyltransferase identification (DamID) to high throughput sequencing (DamID-seq). This improved method provides a higher resolution and a wider dynamic range, and allows analyzing DamID-seq data in conjunction with other high throughput sequencing data such as ChIP-seq, RNA-seq, etc.
03:08
Colorimetric Assay for Quantification of Lactate in Test Samples
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2025
This video describes a colorimetric assay for lactate measurement in cell lysates by using the lactate dehydrogenase enzyme. This enzyme converts lactate into pyruvate, along with the conversion of NAD to NADH that reacts with tetrazolium dyes and gives a colored product that can be measured spectrophotometrically to quantitate the lactate.
FAQs
During nutrient breakdown, enzymes transfer electrons to NAD+, producing NADH. Other reactions can accept those electrons from NADH and regenerate NAD+. This reversible cycling allows electron movement to continue across linked metabolic pathways rather than remaining confined to a single reaction. Its importance lies in connecting nutrient processing with downstream energy production through oxidative phosphorylation.
The relative availability of NAD+ and NADH reflects whether cellular reactions are accepting or donating electrons. Because NAD participates in both directions, shifts between these forms help coordinate metabolic reactions and maintain redox balance. Studying this relationship can show how changes in cellular metabolism affect biochemical function, especially when normal energy-processing pathways become disrupted.
NAD also acts as a substrate for enzymes involved in DNA repair and cellular signaling. In these reactions, its role extends beyond energy transfer, allowing metabolic conditions to influence cell maintenance and communication. This connection explains why changes in NAD metabolism may affect both the handling of cellular damage and the regulation of processes that respond to metabolic state.
NAD links several stages of nutrient breakdown by carrying electrons between enzyme-catalyzed reactions. Glycolysis and the citric acid cycle generate reduced NADH as nutrients are processed, while oxidative phosphorylation uses the transferred electrons in subsequent energy production. Examining these pathways together provides a systems-level view of how cells convert metabolic activity into usable energy.
Investigating NAD metabolism can reveal how cells produce energy, manage redox balance, and coordinate metabolic activity with maintenance functions. Researchers can also use this subject to examine how changes in biochemical pathways relate to aging-related cellular changes or disease-associated dysfunction. The topic therefore connects basic metabolism with broader questions about cell health and biological decline.
Altered NAD metabolism may connect changes in energy production and redox balance with impaired cellular function. Because NAD also supports DNA repair and cellular signaling, metabolic disruption can have consequences beyond nutrient breakdown. Studying these relationships helps biology researchers investigate how aging-related changes and diseases involving abnormal metabolism contribute to cellular dysfunction.