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Introduction to Metabolism01:30

Introduction to Metabolism

Metabolism encompasses all biochemical reactions in a living organism, facilitating both the breakdown and synthesis of biomolecules. These metabolic processes are categorized into catabolic and anabolic pathways, which operate in a coordinated manner to ensure energy balance and cellular function.Catabolic Pathways and Energy ReleaseCatabolic pathways involve the breakdown of complex macromolecules such as carbohydrates, lipids, and proteins into smaller structures like monosaccharides, fatty...
Regulation of Metabolism01:19

Regulation of Metabolism

Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
Other Glycolytic Pathways01:24

Other Glycolytic Pathways

The pentose phosphate pathway (PPP) operates in parallel with glycolysis, facilitating the metabolism of both pentoses and glucose. This pathway consists of two distinct phases: the oxidative and non-oxidative phases. While it does not directly generate ATP, the intermediates formed during the process can integrate into glycolysis, contributing to cellular energy metabolism when required.Oxidative Phase: NADPH ProductionThe oxidative phase of the pentose phosphate pathway is primarily...
Overview of Metabolism01:40

Overview of Metabolism

Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
What is Metabolism?00:52

What is Metabolism?

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Comparing methods for metabolic network analysis and an application to metabolic engineering.

Namrata Tomar1, Rajat K De

  • 1Machine Intelligence Unit, Indian Statistical Institute, 203 B.T. Road, Kolkata 700108, India. namrata_t@isical.ac.in

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Summary

Bioinformatics tools enable the analysis of cellular metabolism from genomic data. This review details advances in metabolic network analysis software and algorithms for physiology and microbial engineering.

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Area of Science:

  • Computational biology and systems biology
  • Genomics and bioinformatics
  • Metabolic engineering

Background:

  • Cellular metabolism analysis aids in understanding organismal capabilities.
  • Quantitative analysis of metabolic pathways is crucial for biological insights.
  • In silico methods offer virtual laboratory environments for studying cellular functions.

Purpose of the Study:

  • To summarize advancements in software and algorithms for metabolic network analysis.
  • To review applications in cellular physiology and metabolic engineering.
  • To provide a comparative analysis of different in silico approaches.

Main Methods:

  • Genome-based reconstruction of metabolic networks.
  • In silico analysis including structural, stoichiometric, and flux analyses.
  • Metabolic control analysis and kinetic modeling approaches.

Main Results:

  • Progress in bioinformatics tools for metabolic network reconstruction and analysis.
  • Applications demonstrated in understanding cellular physiology.
  • Emphasis on microbial strain optimization through metabolic engineering.

Conclusions:

  • Software and algorithm development has significantly advanced metabolic network analysis.
  • In silico approaches provide valuable insights into cellular functions.
  • Comparative analysis aids in selecting appropriate methods for metabolic engineering and physiological studies.