Open Access
Cytoplasmic membrane iron permease systems in the bacterial cell envelope
Wolfgang Koster1
Environmental Microbiology and Molecular Ecotoxicology (MIX), Swiss Federal Inst. for Environmental Science and Technology (EAWAG), Uberlandstrasse 133, CH-8600 Dubendorf, Switzerland. <>
DOI: 10.2741/1542 Volume 10 Issue 1, pp.462-477
Published: 01 January 2005
(This article belongs to the Special Issue Bacterial membrane transport)

Iron is a vital nutrient for the vast majority of organisms. Gram-positive bacteria, Gram-negative bacteria and archaea established different strategies to utilize iron from various sources. This article concentrates on the cytoplasmic membrane-associated uptake systems involved in the acquisition of iron. Genetic, biochemical and structural data as well as computational analyses were taken into consideration. Besides divalent metal transporters of the Nramp type and ferrous iron transport proteins of the Feo type, four distinct families of ABC transporters related to iron uptake are known. Their components mediate the transfer of iron, siderophores, heme and vitamin B12 into the cytosol of prokaryotes.

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Wolfgang Koster. Cytoplasmic membrane iron permease systems in the bacterial cell envelope. Frontiers in Bioscience-Landmark. 2005. 10(1); 462-477.