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The ETC scheme for the reduction of one oxygen molecule (by the circuit of Complex I/Complex II − 2 Complex III − Complex IV) b .

The ETC scheme for the reduction of one oxygen molecule (by the circuit of Complex I/Complex II − 2 Complex III − Complex IV) b .

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The acclaimed explanation for mitochondrial oxidative phosphorylation (mOxPhos, or cellular respiration) is a deterministic proton-centric scheme involving four components: Rotary adenosine triphosphate (ATP)-synthesis, Chemiosmosis principle, Proton pumps, and Electron transport chain (abbreviated as RCPE hypothesis). Within this write-up, the RCP...

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... conjunction with the particular issues brought out within each Complex (for example: the limiting rate of anaerobic heme-heme transfer within Complex IV), the realities (as summated above) pose insurmountable constraints on the sequential mode of transfer of four electrons within the ETC. Now, Table 4 captures the gist of overall ETC. As per the prevailing ideas, the reduction of one molecule of oxygen at Complex IV (by a total of four electrons derived from a mole- cule each of NADH and succinate) minimally solicits the syn- chronous and tandem working (or continuous linking) of ~70 proteins/small molecules present on/across the phospholipid membrane. ...
Context 2
... (Table 4), several steps of the proposed ETC would fall short (with respect to probability, thermodynamics, and kinetics; including the long inter-center/overall distances, number of participants and sequential/multi-molecular inter- actions, unfavorable gradients, etc) to explain the sub-millisec- ond oxidation rates experimentally observed in physiological systems. Therefore, it is safe to infer that the proposed outer- sphere sequential ETC cannot afford the overall experimental oxidation rates observed in physiology. ...

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... Keywords: bioenergetics, murburn concept, murzymes, oxidative/photo phosphorylation, trans-membrane potential, proton motive force, electron transport chain, coacervate Layout I. The two major purviews of bioenergetics obligatorily required to carry out key functions (electron/moiety/molecule transfers) in cellular physiology, and some reactions may also occur outside the confines of "active site" (5)(6)(7)(8). ...
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