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Microbial ferric iron reductases

Schröder, Imke ; Johnson, Eric ; de Vries, Simon

FEMS microbiology reviews, 2003-06, Vol.27 (2), p.427-447 [Periódico revisado por pares]

Oxford, UK: Elsevier B.V

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Título:
Microbial ferric iron reductases
Autor: Schröder, Imke ; Johnson, Eric ; de Vries, Simon
Assuntos: Archaea ; Archaea - enzymology ; Archaeal Proteins - analysis ; Archaeoglobus fulgidus ; Archaeoglobus fulgidus - metabolism ; Bacteria ; Bacteria - cytology ; Bacteria - enzymology ; Bacteria - metabolism ; Dissimilatory iron reductase ; Enzymes ; Ferric iron reductase ; Flavin ; Flavin reductase ; FMN Reductase - metabolism ; Fre ; Iron ; Iron - chemistry ; Iron - metabolism ; Iron assimilation ; Iron cycle ; Iron-reducing bacteria ; Microorganisms ; Models, Biological ; Oxidation-Reduction ; Physiology ; Protein Structure, Tertiary ; Reductases ; Saccharomyces cerevisiae ; Shewanella - genetics ; Shewanella - metabolism ; Structure-function relationships ; Yeasts ; Yeasts - cytology ; Yeasts - enzymology ; Yeasts - metabolism
É parte de: FEMS microbiology reviews, 2003-06, Vol.27 (2), p.427-447
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Descrição: Almost all organisms require iron for enzymes involved in essential cellular reactions. Aerobic microbes living at neutral or alkaline pH encounter poor iron availability due to the insolubility of ferric iron. Assimilatory ferric reductases are essential components of the iron assimilatory pathway that generate the more soluble ferrous iron, which is then incorporated into cellular proteins. Dissimilatory ferric reductases are essential terminal reductases of the iron respiratory pathway in iron-reducing bacteria. While our understanding of dissimilatory ferric reductases is still limited, it is clear that these enzymes are distinct from the assimilatory-type ferric reductases. Research over the last 10 years has revealed that most bacterial assimilatory ferric reductases are flavin reductases, which can serve several physiological roles. This article reviews the physiological function and structure of assimilatory and dissimilatory ferric reductases present in the Bacteria, Archaea and Yeast. Ferric reductases do not form a single family, but appear to be distinct enzymes suggesting that several independent strategies for iron reduction may have evolved.
Editor: Oxford, UK: Elsevier B.V
Idioma: Inglês

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Microbial ferric iron reductases

Schröder, Imke ; Johnson, Eric ; de Vries, Simon

Oxford, UK: Elsevier B.V

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