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Overview of the citric acid cycle. The citric acid cycle—also known as the Krebs cycle, Szent–Györgyi–Krebs cycle, or TCA cycle (tricarboxylic acid cycle) [1] [2] —is a series of biochemical reactions to release the energy stored in nutrients through the oxidation of acetyl-CoA derived from carbohydrates, fats, proteins, and alcohol.
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The reverse Krebs cycle, also known as the reverse TCA cycle (rTCA) or reductive citric acid cycle, is an alternative to the standard Calvin-Benson cycle for carbon fixation. It has been found in strict anaerobic or microaerobic bacteria (as Aquificales ) and anaerobic archea .
The Krebs cycle, also known as the TCA cycle or Citric Acid cycle, is a biochemical pathway that facilitates the breakdown of glucose in a cell. Both citrate and malate involved in the citrate-malate shuttle are necessary intermediates of the Krebs cycle. [ 9 ]
Common name IUPAC name Molecular formula Structural formula citric acid: 2-hydroxypropane-1,2,3-tricarboxylic acid: C 6 H 8 O 7: isocitric acid: 1-hydroxypropane-1,2,3-tricarboxylic acid
The Reductive/Reverse TCA Cycle (rTCA cycle). Shown are all of the reactants, intermediates and products for this cycle. The reverse Krebs cycle (also known as the reverse tricarboxylic acid cycle, the reverse TCA cycle, or the reverse citric acid cycle, or the reductive tricarboxylic acid cycle, or the reductive TCA cycle) is a sequence of chemical reactions that are used by some bacteria and ...
Acetyl-CoA + H 2 O Oxaloacetate NADH +H + NAD + Malate H 2 O Fumarate FADH 2 FAD Succinate CoA + ATP (GTP) P i + ADP (GDP) Succinyl-CoA NADH + H + + CO 2 CoA NAD + Citrate H 2 O cis- Aconitate H 2 O Isocitrate NAD(P) + NAD(P)H + H + Oxalosuccinate CO 2 2-oxoglutarate Template documentation [view] [history] [purge] This page is the template for the Citric Acid Cycle Navigation template. Usage ...
Fatty acid degradation is the process in which fatty acids are broken down into their metabolites, in the end generating acetyl-CoA, the entry molecule for the citric acid cycle, the main energy supply of living organisms, including bacteria and animals. [1] [2] It includes three major steps: Lipolysis of and release from adipose tissue