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Difference between revisions of "Coupling-control ratio"

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|topics=Respiratory state, Respiration; OXPHOS; ETS Capacity, Coupling; Membrane Potential
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Revision as of 16:00, 9 March 2011


high-resolution terminology - matching measurements at high-resolution


Coupling-control ratio

Description

Coupling control ratios, CCR, are flux control ratios, FCR, at a constant mitochondrial substrate state. In mitochondrial preparations, there are three well-defined coupling states of respiration, L, P, E (LEAK, OXPHOS, ETS). In intact cells, state P cannot be induced, but a ROUTINE state of respiration, R, can be measured. The reference state, Jref, is defined by taking Jref as the maximum flux, i.e. flux in the ETS state, E, such that the lower and upper limits of CCR are defined as 0.0 and 1.0. Then there are two mitochondrial CCR, L/E and P/E, and two CCR for intact cells, L/E and R/E.

Abbreviation: CCR

Reference: Gnaiger_2009_IJBCB, Pesta_2011_Protocols, List of respiratory states


MitoPedia topics: "Respiratory state" is not in the list (Enzyme, Medium, Inhibitor, Substrate and metabolite, Uncoupler, Sample preparation, Permeabilization agent, EAGLE, MitoGlobal Organizations, MitoGlobal Centres, ...) of allowed values for the "MitoPedia topic" property. Respiratory state"Respiratory state" is not in the list (Enzyme, Medium, Inhibitor, Substrate and metabolite, Uncoupler, Sample preparation, Permeabilization agent, EAGLE, MitoGlobal Organizations, MitoGlobal Centres, ...) of allowed values for the "MitoPedia topic" property.