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Difference between revisions of "Q-junction"

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{{MitoPedia
{{MitoPedia
|abbr=Q
|abbr=Q
|description=The '''Q-junction''' is a junction for [[convergent electron flow]] in the [[ETS]] from [[CI]], [[CII]], [[electron-transferring flavoprotein]], [[glycerophosphate dehydrogenase]], choline dehydrogenase and other enzymes into the [[Q-cycle]] (ubiquinol/ubiquinone), and further to [[Complex III|CIII]].
|description=The '''Q-junction''' is a junction for [[convergent electron flow]] in the [[electron transfer system]] (ETS) from [[Complex I]] (C<sub>I</sub>), [[Complex II]] (C<sub>II</sub>), [[electron-transferring flavoprotein]] (C<sub>ETF</sub>), [[glycerophosphate dehydrogenase complex]] (C<sub>GpDH</sub>), choline dehydrogenase and other enzyme complexes into the [[Q-cycle]] (ubiquinol/ubiquinone), and further to [[Complex III]] (C<sub>III</sub>).
|info=[[Gnaiger 2009 Int J Biochem Cell Biol]], [[Gnaiger 2012 MitoPathways]]
|info=[[Gnaiger 2009 Int J Biochem Cell Biol]], [[Gnaiger 2012 MitoPathways]]
|type=Respiration
|type=Respiration

Revision as of 23:18, 25 June 2014


high-resolution terminology - matching measurements at high-resolution


Q-junction

Description

The Q-junction is a junction for convergent electron flow in the electron transfer system (ETS) from Complex I (CI), Complex II (CII), electron-transferring flavoprotein (CETF), glycerophosphate dehydrogenase complex (CGpDH), choline dehydrogenase and other enzyme complexes into the Q-cycle (ubiquinol/ubiquinone), and further to Complex III (CIII).

Abbreviation: Q

Reference: Gnaiger 2009 Int J Biochem Cell Biol, Gnaiger 2012 MitoPathways


MitoPedia methods: Respirometry 



Convergent CI+II linked electron flow at the Q-junction, exerting an additive effect on flux, versus electron gaiting for separation of single input pathways (upper panel: Gnaiger 2009; lower panel: Hatefi et al 1962). From Fig. 1.5 in Gnaiger 2012 MitoPathways.