Succinate dehydrogenase and fumarate reductase from Escherichia coli.

  title={Succinate dehydrogenase and fumarate reductase from Escherichia coli.},
  author={Gary Cecchini and Imke Schr{\"o}der and Robert P. Gunsalus and Elena Maklashina},
  journal={Biochimica et biophysica acta},
  volume={1553 1-2},
Succinate-ubiquinone oxidoreductase (SQR) as part of the trichloroacetic acid cycle and menaquinol-fumarate oxidoreductase (QFR) used for anaerobic respiration by Escherichia coli are structurally and functionally related membrane-bound enzyme complexes. Each enzyme complex is composed of four distinct subunits. The recent solution of the X-ray structure of QFR has provided new insights into the function of these enzymes. Both enzyme complexes contain a catalytic domain composed of a subunit… CONTINUE READING