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Descriptor English: | Substrate Cycling | ||||||
Descriptor Spanish: |
Ciclo del Sustrato
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Descriptor Portuguese: | Ciclização de Substratos | ||||||
Descriptor French: | Recyclage du substrat | ||||||
Entry term(s): |
Cycles de substrats Cycles futiles Recyclage futile |
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Tree number(s): |
G02.111.833 G03.295.835 |
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RDF Unique Identifier: | https://id.nlm.nih.gov/mesh/D015219 | ||||||
Scope note: | A set of opposing, nonequilibrium reactions catalyzed by different enzymes which act simultaneously, with at least one of the reactions driven by ATP hydrolysis. The results of the cycle are that ATP energy is depleted, heat is produced and no net substrate-to-product conversion is achieved. Examples of substrate cycling are cycling of gluconeogenesis and glycolysis pathways and cycling of the triglycerides and fatty acid pathways. Rates of substrate cycling may be increased many-fold in association with hypermetabolic states resulting from severe burns, cold exposure, hyperthyroidism, or acute exercise. |
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Annotation: | restricted to enzyme activity; almost never IM; coord NIM with specific enzyme (IM) |
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Allowable Qualifiers: |
DE effets des médicaments et des substances chimiques GE génétique IM immunologie PH physiologie RE effets des radiations |
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DeCS ID: | 23842 | ||||||
Unique ID: | D015219 | ||||||
Documents indexed in the Virtual Health Library (VHL): | Click here to access the VHL documents | ||||||
Date Established: | 1989/01/01 | ||||||
Date of Entry: | 1988/05/11 | ||||||
Revision Date: | 2016/07/01 |
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PHÉNOMÈNES ET PROCESSUS
Phénomènes chimiques [G02]Phénomènes chimiques -
PHÉNOMÈNES ET PROCESSUS
Métabolisme [G03]Métabolisme
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Recyclage du substrat
- Preferred
Cycles futiles
- Narrower
Concept UI |
M0023381 |
Preferred term | Recyclage du substrat |
Concept UI |
M0023382 |
Preferred term | Cycles futiles |
Entry term(s) |
Cycles de substrats Recyclage futile |
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