Quinoprotein ethanol dehydrogenase from Pseudomonas aeruginosa: the unusual disulfide ring formed by adjacent cysteine residues is essential for efficient electron transfer to cytochrome c550

@article{Mennenga2009QuinoproteinED,
  title={Quinoprotein ethanol dehydrogenase from Pseudomonas aeruginosa: the unusual disulfide ring formed by adjacent cysteine residues is essential for efficient electron transfer to cytochrome c550},
  author={Bina Mennenga and C. Kay and H. Goerisch},
  journal={Archives of Microbiology},
  year={2009},
  volume={191},
  pages={361-367}
}
All pyrroloquinoline quinone (PQQ)-dependent alcohol dehydrogenases contain an unusual disulfide ring formed between adjacent cysteine residues. A mutant enzyme that is lacking this structure was generated by replacing Cys105 and Cys106 with Ala in quinoprotein ethanol dehydrogenase (QEDH) from Pseudomonas aeruginosa ATCC17933. Heterologously expressed quinoprotein ethanol dehydrogenase in which Cys-105 and Cys-106 have been replaced by Ala (Cys105Ala/Cys106Ala apo-QEDH) was successfully… Expand
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