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Structure of complex II (succinate dehydrogenase)

Structure of complex II (succinate dehydrogenase)
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Description: The enzyme is composed of two hydrophilic subunits extending into the matrix, the FAD-binding subunit (blue) and the iron–sulfur subunit (yellow), and two transmembrane subunits (pink and gold).

The path of electron transport from FAD through the three iron–sulfur clusters to coenzyme Q (UQ) is shown on the right.

Succinate binds near FAD in the blue subunit.

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Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34577
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