LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Oxidoreductase enzyme complex, molecular model. This is the membrane-bound domain formed from of a complex of NADH-quinone oxidoreductase subunits. The whole is termed respiratory complex I, due to its role in the biochemistry of the cellular respiratory chain. It harnesses the electron transfer between NADH and ubiquinone, driving the movement of protons across cell membranes. It is an L-shaped complex with six subunits, indicated here by the different colours. This enzyme complex is also being studied for its possible role in human neurodegenerative diseases.
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