3VR8:
reference: Crystal structure of mitochondrial quinol-fumarate reductase from the parasitic nematode Ascaris suum., Shimizu H, Osanai A, Sakamoto K, Inaoka DK, Shiba T, Harada S, Kita K, J Biochem. 2012 Jun;151(6):589-92. Epub 2012 May 9. PMID: 22577165

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