Redox states of DsbA in the periplasm of Escherichia coli.


DsbA is a periplasmic, disulfide bond formation factor of E. coli. We studied in vivo redox states of its active site cysteines. When periplasmic contents were prepared from iodoacetic acid-treated cells, according to the previously published procedures, variable but major proportions of DsbA were in the reduced form. We found that this was due to an… (More)


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