Mössbauer studies of cytochrome c-551. Intrinsic heterogeneity related to g-strain

A. Dwivedi, W. A. Toscano, P. G. Debrunner

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Abstract

The Mössbauer spectra of oxidized and reduced cytochrome c-551 from Pseudomonas aeruginosa are analyzed. Excess broadening is observed in the 4.2 K spectra of oxidized c-551 which is consistent with a Gaussian distribution of the crystal field parameters Δ and R as inferred from the g-strain model of EPR line shapes.

Original languageEnglish (US)
Pages (from-to)502-508
Number of pages7
JournalBBA - Protein Structure
Volume576
Issue number2
DOIs
StatePublished - Feb 26 1979

Keywords

  • Cytochrome c-551
  • Low spin heme
  • Mössbauer analysis

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