Resonance Raman Studies and Structure of a Sulfide Complex of Methemerythrin

Susan M. Freier, Lori L. Duff, Richard P. Van Duyne, Irving M. Klotz*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The complex of sulfide and methemerythrin has been characterized by resonance Raman spectroscopy. At pH 8.0 the complex contains two irons and one S2- at the active site. The resonance Raman spectrum of the sulfidomethemerythrin complex contains only one vibration, at 444 cm-1. This vibration is assigned to an iron-sulfide stretch. The possibility that sulfidomethemerythrin contains a μ-sulfido bridge, FeIII-S2-FeIII, analogous to the proposed μ-oxo bridge in azidomethemerythrin is discussed.

Original languageEnglish (US)
Pages (from-to)5372-5377
Number of pages6
JournalBiochemistry
Volume18
Issue number24
DOIs
StatePublished - Jan 1 1979

ASJC Scopus subject areas

  • Biochemistry

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