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Difference between revisions of "Q-junction"

From Bioblast
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|abbr=Q
|abbr=Q
|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>).
|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 2014 MitoPathways]]
|type=Respiration
|type=Respiration
}}
}}
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}}
}}
[[File:Hatefi 1962 CI+II 2012.jpg|right|500px|Q-junction]]
[[File:Hatefi 1962 CI+II 2012.jpg|right|500px|Q-junction]]
Convergent C<sub>I+II</sub> 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 Int J Biochem Cell Biol |Gnaiger 2009]]; lower panel: [[Hatefi 1962 J Biol Chem-XLII]]). From Fig. 1.5 in [[Gnaiger 2012 MitoPathways]].
Convergent C<sub>I+II</sub> 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 Int J Biochem Cell Biol |Gnaiger 2009]]; lower panel: [[Hatefi 1962 J Biol Chem-XLII]]). From Fig. 1.5 in [[Gnaiger 2014 MitoPathways]].


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* [[O2k-Publications: Q-Junction Effect]]
* [[O2k-Publications: Q-Junction Effect]]

Revision as of 18:39, 5 August 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 2014 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 1962 J Biol Chem-XLII). From Fig. 1.5 in Gnaiger 2014 MitoPathways.