Tryptophan Metabolism
Tryptophan Metabolism - Related Videos
12:07
Chemical Modification of the Tryptophan Residue in a Recombinant Ca2+-ATPase N-domain for Studying Tryptophan-ANS FRET
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2021
ANS binds to the Ca2+-ATPase recombinant N-domain. Fluorescence spectra display a FRET-like pattern upon excitation at a wavelength of 295 nm. NBS-mediated chemical modification of Trp quenches the fluorescence of the N-domain, which leads to the absence of energy transfer (FRET) between the Trp residue and ANS.
05:41
Metabolic Profile Analysis of Zebrafish Embryos
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Cited by 42 •
2013
Zebrafish represent a powerful vertebrate model that has been under-utilised for metabolic studies. Here we describe a rapid way to measure the in vivo metabolic profile of developing zebrafish that allows the comparison of different mitochondrial function parameters between genetically or pharmacologically manipulated embryos, thereby increasing the applicability of this organism.
00:52
What is Metabolism?
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2019
Overview Metabolism represents all of the chemical activity in a cell, including reactions that build molecules (anabolism) and those that break molecules down (catabolism). Anabolic reactions require energy, whereas catabolic reactions provide it. Thus, metabolism describes how cells transform energy through a variety of chemical reactions, which are often made more efficient with the help of enzymes. Metabolism Is the Sum of All of the Chemical Reactions That Take Place in an Organism
10:19
An Introduction to Cell Metabolism
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2023
In cells, critical molecules are either built by joining together individual units like amino acids or nucleotides, or broken down into smaller components. Respectively, the reactions responsible for this are referred to as anabolic and catabolic. These reactions require or produce energy typically in the form of a “high-energy” molecule called ATP. Together, these processes make up “Cell Metabolism,” and are hallmarks of healthy, living cells.JoVE’s introduction to cell metabolism briefly...
08:28
Metabolic Labeling
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2023
Metabolic labeling is used to probe the biochemical transformations and modifications that occur in a cell. This is accomplished by using chemical analogs that mimic the structure of natural biomolecules. Cells utilize analogs in their endogenous biochemical processes, producing compounds that are labeled. The label allows for the incorporation of detection and affinity tags, which can then be used to elucidate metabolic pathways using other biochemical analytical techniques, such as SDS-PAGE...
FAQs
These enzymes direct most available tryptophan into the kynurenine pathway, making them important control points in the pathway’s overall activity. Indoleamine 2,3-dioxygenase is particularly significant in inflammatory settings because inflammatory signals can activate it. Measuring changes in kynurenine alongside tryptophan can therefore help investigators examine altered pathway activity in medical research.
Tryptophan can enter several biosynthetic routes, and each route supports a different biological function. The kynurenine pathway contributes to immune regulation and energy production, whereas other branches supply serotonin and melatonin or contribute to niacin production. This branching means that changes in tryptophan use may affect neurotransmission, metabolism, and immune-related processes simultaneously.
Inflammatory signals can activate indoleamine 2,3-dioxygenase, shifting tryptophan processing toward the kynurenine pathway. That change can modify the production of kynurenine-related metabolites and influence signaling associated with immune regulation. In medicine, this mechanism provides a biochemical connection between inflammation and altered tryptophan metabolism, supporting investigation of inflammatory and neurological disease processes.
Medical investigations can measure tryptophan, kynurenine, and related metabolites to assess changes in pathway activity. These measurements help researchers examine biochemical patterns associated with inflammation, neurological disorders, metabolic disease, and cancer. Comparing the parent amino acid with downstream metabolites can provide information relevant to diagnostic development, although the overview does not specify a particular testing procedure or interpretation threshold.
Analysis is relevant when researchers are studying conditions linked to inflammation, altered neurotransmission, metabolic dysfunction, or cancer. Tryptophan, kynurenine, and related metabolite measurements can support investigations across these areas rather than serving only one disease category. The pathway is especially informative when researchers want to examine how inflammatory activity may change biochemical signaling.
The pathway contains enzyme-controlled steps and produces signaling molecules connected with immune regulation, neurotransmission, and energy production. Because inflammatory signals can activate indoleamine 2,3-dioxygenase and alter kynurenine signaling, modifying this pathway could become relevant to therapeutic intervention. Its potential also extends to diagnostic development, where metabolite patterns may help characterize disease-associated biochemical changes.