In vitro assembly of [Fe4S4] cluster in high potential iron-sulfur protein from Acidithiobacillus ferrooxidans

Curr Microbiol. 2008 Aug;57(2):161-6. doi: 10.1007/s00284-008-9170-4. Epub 2008 Jun 24.

Abstract

High-potential iron-sulfur protein (HiPIP) has been proposed to be involved in the iron respiratory electron transport chain in Acidithiobacillus ferrooxidans, which contains an [Fe(4)S(4)] cluster. We report here the assembly of an [Fe(4)S(4)] cluster in HiPIP from A. ferrooxidans ATCC 23270 in vitro in the presence of Fe(2+) and sulfide. The spectra and matrix-assisted laser desorption ionization-time of flight mass spectrometry results of holoHiPIP confirmed that the iron-sulfur cluster was correctly assembled into the protein.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acidithiobacillus / metabolism*
  • Bacterial Proteins / metabolism*
  • Iron Compounds / chemistry
  • Iron Compounds / metabolism*
  • Iron-Sulfur Proteins / metabolism*
  • Photosynthetic Reaction Center Complex Proteins / metabolism*
  • Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
  • Spectrum Analysis
  • Sulfides / metabolism

Substances

  • Bacterial Proteins
  • Iron Compounds
  • Iron-Sulfur Proteins
  • Photosynthetic Reaction Center Complex Proteins
  • Sulfides
  • high potential iron-sulfur protein