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Literature summary for 5.3.4.1 extracted from

  • Rancy, P.C.; Thorpe, C.
    Oxidative protein folding in vitro: a study of the cooperation between quiescin-sulfhydryl oxidase and protein disulfide isomerase (2008), Biochemistry, 47, 12047-12056.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
riboflavin binding protein protein disulfide isomerase and quiescin-sulfhydryl oxidase cooperate in vitro to generate native pairings in substrates ribonuclease A, with four disulfide bonds and 105 disulfide isomers of the fully oxidized protein, and avian riboflavin binding protein, with nine disulfide bonds and more than 34 million corresponding disulfide pairings. The isomerase is not a significant substrate of quiescin-sulfhydryl oxidase. Both reduced RNase and riboflavin binding protein can be efficiently refolded in an aerobic solution containing micromolar concentrations of reduced PDI and nanomolar levels of quiescin-sulfhydryl oxidase without any added oxidized PDI or glutathione redox buffer. In the absence of either quiescin-sulfhydryl oxidase or redox buffer, the fastest refolding of riboflavin binding protein is accomplished with excess reduced PDI and just enough oxidized PDI to generate nine disulfides in the protein client Homo sapiens ?
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?
ribonuclease A protein disulfide isomerase and quiescin-sulfhydryl oxidase cooperate in vitro to generate native pairings in ribonuclease A, with four disulfide bonds and 105 disulfide isomers of the fully oxidized protein, and avian riboflavin binding protein, with nine disulfide bonds and more than 34 million corresponding disulfide pairings. The isomerase is not a significant substrate of quiescin-sulfhydryl oxidase. Both reduced RNase and riboflavin binding protein can be efficiently refolded in an aerobic solution containing micromolar concentrations of reduced PDI and nanomolar levels of quiescin-sulfhydryl oxidase without any added oxidized PDI or glutathione redox buffer Homo sapiens ?
-
?