Oxidative phosphorylation: Difference between revisions
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|abbr=OXPHOS | |abbr=OXPHOS | ||
|description=[[File:P.jpg]] | |description=[[File:P.jpg]] | ||
'''Oxidative phosphorylation''' (OXPHOS) is the oxidation of reduced substrates with electron transfer to oxygen, coupled to the phosphorylation of [[ADP]] to [[ATP]] and accompanied by an intrinsically uncoupled component of respiration. The OXPHOS state (''P'') of respiration provides a measure of [[OXPHOS capacity]]. | '''Oxidative phosphorylation''' (OXPHOS) is the oxidation of reduced substrates with electron transfer to oxygen, coupled to the phosphorylation of [[ADP]] to [[ATP]] and accompanied by an intrinsically uncoupled component of respiration. The OXPHOS state (''P'') of respiration provides a measure of [[OXPHOS capacity]], which is frequently corrected for [[residual oxygen consumption]] (ROX). | ||
|info=[http://www.oroboros.at/?Gnaiger_2012_MitoPathways Gnaiger 2012 MitoPathways] | |info=[http://www.oroboros.at/?Gnaiger_2012_MitoPathways Gnaiger 2012 MitoPathways] | ||
|type=Respiration | |type=Respiration | ||
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|type=Respiration | |type=Respiration | ||
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[[Image:OXPHOS-coupled energy cycles.jpg| | [[Image:OXPHOS-coupled energy cycles.jpg|right|400px||link=Gnaiger 2012 MitoPathways|The blue book]] | ||
== OXPHOS == | == OXPHOS == | ||
'''Figure''': Energy transformation in coupled fluxes, ''J'', and forces, ''F'' and Δ''p'', of oxidative phosphorylation. 2[H] indicates the reduced hydrogen equivalents of CHO substrates and electron transfer to oxygen. ''J''<sub>H+out</sub> is coupled output flux. Proton leaks dissipate energy of translocated protons from low pH in the positive P-phase to the negative N-phase (from [[Gnaiger 2012 MitoPathways |Gnaiger 2012]]). | '''Figure''': Energy transformation in coupled fluxes, ''J'', and forces, ''F'' and Δ''p'', of oxidative phosphorylation. 2[H] indicates the reduced hydrogen equivalents of CHO substrates and electron transfer to oxygen. ''J''<sub>H+out</sub> is coupled output flux. Proton leaks dissipate energy of translocated protons from low pH in the positive P-phase to the negative N-phase (from [[Gnaiger 2012 MitoPathways |Gnaiger 2012]]). | ||
== Related terms in Bioblast == | |||
[[File:ROX.jpg]] [[Residual oxygen consumption |ROX]], ''R'' | |||
[[File:L.jpg]] [[LEAK respiration |LEAK]], ''L'' | |||
[[File:R.jpg]] [[ROUTINE respiration |ROUTINE]], ''R'' | |||
[[File:P.jpg]] OXPHOS, ''P'' | |||
[[File:E.jpg]] [[Electron transfer system |ETS]], ''E'' |
Revision as of 10:55, 21 June 2014
Description
Oxidative phosphorylation (OXPHOS) is the oxidation of reduced substrates with electron transfer to oxygen, coupled to the phosphorylation of ADP to ATP and accompanied by an intrinsically uncoupled component of respiration. The OXPHOS state (P) of respiration provides a measure of OXPHOS capacity, which is frequently corrected for residual oxygen consumption (ROX).
Abbreviation: OXPHOS
Reference: Gnaiger 2012 MitoPathways
MitoPedia methods:
Respirometry
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.
OXPHOS
Figure: Energy transformation in coupled fluxes, J, and forces, F and Δp, of oxidative phosphorylation. 2[H] indicates the reduced hydrogen equivalents of CHO substrates and electron transfer to oxygen. JH+out is coupled output flux. Proton leaks dissipate energy of translocated protons from low pH in the positive P-phase to the negative N-phase (from Gnaiger 2012).
Related terms in Bioblast
ROX, R
LEAK, L
ROUTINE, R
ETS, E