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 [[ | |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
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.