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Structural model of complex II

Structural model of complex II showing the enzymatic conversions and the transfer of electrons. Electron carriers of complex II include FADH2, iron-sulfur centers, heme b, and ubiquinone. Illustration by Richard Wheeler (Zephyris), 2006. (Courtesy of Wikimedia Commons. GNU Free Documentation License.)

Associated Disorders

  • Cardiomyopathy
  • Kearns-Sayre syndrome
  • Late-onset progressive neurodegeneration
  • Leigh disease
  • Seizures