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SlideshowReport

Structure of complex II (succinate dehydrogenase)

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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