The cytochromes of Escherichia coli

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Escherichia coli contains numerous heme-containing proteins when grown either aerobicaly or anaerobically. These cytochrome species are distributed in the cytoplasm, the periplasm, or are bound to the cytoplasmic membrane. They are involved in various physiological functions, including electron transport, oxidative phosphorylation, assimilatory metabolism and detoxification. One dozen unique cytochrome species have been biochemically and/or genetically characterized. They contain one or more of the four heme groups which E. coli is known to produce: protoheme IX, heme c, heme d, and siroheme. The purpose of this articles is to summarize what we know about the structure and function of this collection of heme proteins.

Original languageEnglish (US)
Pages (from-to)387-399
Number of pages13
JournalFEMS microbiology letters
Issue number4
StatePublished - Oct 1987


  • Cytochrome
  • Escherichia coli
  • Heme

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology
  • Genetics


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