Metabolism

Pathways of energy and biomass production in cells.


foundation tier

Metabolism — Pathways of energy and biomass production in cells.

The field organises around several methodological axes: how the underlying objects are modelled, how they are measured, how they are connected to the rest of chemistry, and which empirical phenomena drive open questions. The references below anchor the topic in established treatments and current literature.

Foundations and core methods

A primary reference for this area is Lehninger Principles of Biochemistry (Nelson and Cox, 2021), which lays out the core concepts that govern metabolism. The treatment frames the subject within the broader context of biochemistry and motivates the conceptual vocabulary used throughout this page. The discussion here cites this work as a general anchor rather than for a specific claim, since the exact contribution claim is treated cautiously in line with the Charted sourcing policy.

A complementary perspective comes from Biochemistry (Berg et al., 2015), which provides further background on the methods and results most relevant to metabolism. Together with the previous reference, it establishes the standard expectations for how practitioners approach the topic in current practice.

Open questions

Open methodological questions in metabolism include the transferability of the standard methods to harder regimes, the integration of newer measurement and modelling tools, and the connection to neighbouring subfields of biochemistry. Future revisions of this page will deepen the treatment as more primary literature is curated.

Prerequisites

Sources

  • textbook · primary · 2021
    Lehninger Principles of Biochemistry
    lehninger-2021, cox-2021
  • textbook · primary · 2015
    Biochemistry
    berg-jeremy-2015, tymoczko-2015, stryer-2015

In context

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Explore

  1. 01

    Glycolysis and Gluconeogenesis

    Central carbohydrate pathways and their regulation.

  2. 02

    The Citric Acid Cycle

    TCA cycle reactions, regulation, and integration with biosynthesis.

  3. 03

    Oxidative Phosphorylation

    Electron transport chain, chemiosmosis, and ATP synthase.

  4. 04

    Photosynthesis

    Light-harvesting, charge separation, water oxidation, and the Calvin cycle.

  5. 05

    Amino Acid Metabolism

    Biosynthesis and degradation of amino acids and nitrogen transfer.

  6. 06

    Nucleotide Metabolism

    De novo and salvage pathways for purines and pyrimidines.

  7. 07

    Secondary Metabolism

    Polyketides, NRPs, terpenoids, and alkaloid biosynthesis.

  8. 08

    Metabolomics

    Mass-spectrometric and NMR profiling of small-molecule metabolites.

  9. 09

    Fluxomics and Isotope Tracing

    13C and 2H labeling to quantify metabolic flux through pathways.


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