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Superoxidized states of Escherichia coli sulfite reductase heme protein subunit.

Publication ,  Journal Article
Young, LJ; Siegel, LM
Published in: Biochemistry
August 9, 1988

The oxidized forms of resting and sulfite-complexed Escherichia coli sulfite reductase heme protein subunit react with near-stoichiometric amounts of porphyrexide to produce what is best characterized as a ferrisiroheme pi cation radical. Addition of either sodium ascorbate or NADPH completely regenerates the parent form. Implications of these findings with respect to mechanisms of metal-radical J coupling and catalysis are discussed.

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Published In

Biochemistry

DOI

ISSN

0006-2960

Publication Date

August 9, 1988

Volume

27

Issue

16

Start / End Page

5984 / 5990

Location

United States

Related Subject Headings

  • Sulfite Reductase (NADPH)
  • Spectrophotometry
  • Protein Conformation
  • Porphyrins
  • Oxidoreductases Acting on Sulfur Group Donors
  • Oxidoreductases
  • Oxidation-Reduction
  • Free Radicals
  • Escherichia coli
  • Biochemistry & Molecular Biology
 

Citation

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Young, L. J., & Siegel, L. M. (1988). Superoxidized states of Escherichia coli sulfite reductase heme protein subunit. Biochemistry, 27(16), 5984–5990. https://doi.org/10.1021/bi00416a023
Young, L. J., and L. M. Siegel. “Superoxidized states of Escherichia coli sulfite reductase heme protein subunit.Biochemistry 27, no. 16 (August 9, 1988): 5984–90. https://doi.org/10.1021/bi00416a023.
Young LJ, Siegel LM. Superoxidized states of Escherichia coli sulfite reductase heme protein subunit. Biochemistry. 1988 Aug 9;27(16):5984–90.
Young, L. J., and L. M. Siegel. “Superoxidized states of Escherichia coli sulfite reductase heme protein subunit.Biochemistry, vol. 27, no. 16, Aug. 1988, pp. 5984–90. Pubmed, doi:10.1021/bi00416a023.
Young LJ, Siegel LM. Superoxidized states of Escherichia coli sulfite reductase heme protein subunit. Biochemistry. 1988 Aug 9;27(16):5984–5990.
Journal cover image

Published In

Biochemistry

DOI

ISSN

0006-2960

Publication Date

August 9, 1988

Volume

27

Issue

16

Start / End Page

5984 / 5990

Location

United States

Related Subject Headings

  • Sulfite Reductase (NADPH)
  • Spectrophotometry
  • Protein Conformation
  • Porphyrins
  • Oxidoreductases Acting on Sulfur Group Donors
  • Oxidoreductases
  • Oxidation-Reduction
  • Free Radicals
  • Escherichia coli
  • Biochemistry & Molecular Biology