A part of the respiratory chain, containing the four polypeptide subunits of succinate dehydrogenase, flavin-adenine dinucleotide and iron-sulfur. Catalyzes the oxidation of succinate by ubiquinone. Connects the TCA cycle with the respiratory chain. (Gene Ontology, GO_0045273)
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4 proteins localized to the respiratory chain complex ii cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.