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
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Research Support, Non-U.S. Gov't
MeSH terms
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Acidithiobacillus / metabolism*
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Bacterial Proteins / metabolism*
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Iron Compounds / chemistry
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Iron Compounds / metabolism*
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Iron-Sulfur Proteins / metabolism*
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Photosynthetic Reaction Center Complex Proteins / metabolism*
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Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
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Spectrum Analysis
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Sulfides / metabolism
Substances
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Bacterial Proteins
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Iron Compounds
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Iron-Sulfur Proteins
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Photosynthetic Reaction Center Complex Proteins
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Sulfides
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high potential iron-sulfur protein