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 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.